Home / 10,207.20-15,302.64-9,387.12

Finding the Fourth Proportional to 10,207.20, 15,302.64 and 9,387.12

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Solution

The fourth proportional to 10,207.20, 15,302.64 and 9,387.12 is: 14,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.20 : 15,302.64 = 9,387.12 : x
  2. Step 2: Convert to fraction form
    10,207.20/15,302.64 = 9,387.12/x
  3. Step 3: Cross multiply
    10,207.20x = 15,302.64 × 9,387.12
  4. Step 4: Simplify right side
    10,207.20x = 143,647,718.00
  5. Step 5: Solve for x
    x = 143,647,718.00/10,207.20
  6. Step 6: Final answer
    x = 14,073.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.