Home / 12,694.16-17,516.28-7,389.92

Finding the Fourth Proportional to 12,694.16, 17,516.28 and 7,389.92

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Solution

The fourth proportional to 12,694.16, 17,516.28 and 7,389.92 is: 10,197.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.16 : 17,516.28 = 7,389.92 : x
  2. Step 2: Convert to fraction form
    12,694.16/17,516.28 = 7,389.92/x
  3. Step 3: Cross multiply
    12,694.16x = 17,516.28 × 7,389.92
  4. Step 4: Simplify right side
    12,694.16x = 129,443,907.90
  5. Step 5: Solve for x
    x = 129,443,907.90/12,694.16
  6. Step 6: Final answer
    x = 10,197.12

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Double scale
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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.