Home / 9,565.20-14,278.10-9,139.14

Finding the Fourth Proportional to 9,565.20, 14,278.10 and 9,139.14

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Solution

The fourth proportional to 9,565.20, 14,278.10 and 9,139.14 is: 13,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,565.20 : 14,278.10 = 9,139.14 : x
  2. Step 2: Convert to fraction form
    9,565.20/14,278.10 = 9,139.14/x
  3. Step 3: Cross multiply
    9,565.20x = 14,278.10 × 9,139.14
  4. Step 4: Simplify right side
    9,565.20x = 130,489,509.14
  5. Step 5: Solve for x
    x = 130,489,509.14/9,565.20
  6. Step 6: Final answer
    x = 13,642.11

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.