Home / 9,626.58-13,278.21-7,242.75

Finding the Fourth Proportional to 9,626.58, 13,278.21 and 7,242.75

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Solution

The fourth proportional to 9,626.58, 13,278.21 and 7,242.75 is: 9,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,626.58 : 13,278.21 = 7,242.75 : x
  2. Step 2: Convert to fraction form
    9,626.58/13,278.21 = 7,242.75/x
  3. Step 3: Cross multiply
    9,626.58x = 13,278.21 × 7,242.75
  4. Step 4: Simplify right side
    9,626.58x = 96,170,755.48
  5. Step 5: Solve for x
    x = 96,170,755.48/9,626.58
  6. Step 6: Final answer
    x = 9,990.13

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Half scale
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Double scale
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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.