Home / 12,408.06-17,123.32-6,742.92

Finding the Fourth Proportional to 12,408.06, 17,123.32 and 6,742.92

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Solution

The fourth proportional to 12,408.06, 17,123.32 and 6,742.92 is: 9,305.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.06 : 17,123.32 = 6,742.92 : x
  2. Step 2: Convert to fraction form
    12,408.06/17,123.32 = 6,742.92/x
  3. Step 3: Cross multiply
    12,408.06x = 17,123.32 × 6,742.92
  4. Step 4: Simplify right side
    12,408.06x = 115,461,176.89
  5. Step 5: Solve for x
    x = 115,461,176.89/12,408.06
  6. Step 6: Final answer
    x = 9,305.34

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Half scale
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Double scale
Find fourth proportional to 12,409.06, 17,124.70 and 6,743.92
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.