Home / 12,445.32-17,173.40-7,408.74

Finding the Fourth Proportional to 12,445.32, 17,173.40 and 7,408.74

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Solution

The fourth proportional to 12,445.32, 17,173.40 and 7,408.74 is: 10,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.32 : 17,173.40 = 7,408.74 : x
  2. Step 2: Convert to fraction form
    12,445.32/17,173.40 = 7,408.74/x
  3. Step 3: Cross multiply
    12,445.32x = 17,173.40 × 7,408.74
  4. Step 4: Simplify right side
    12,445.32x = 127,233,255.52
  5. Step 5: Solve for x
    x = 127,233,255.52/12,445.32
  6. Step 6: Final answer
    x = 10,223.38

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Find fourth proportional to 6,222.66, 8,586.70 and 3,704.37
Half scale
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Double scale
Find fourth proportional to 12,446.32, 17,174.78 and 7,409.74
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.