Home / 12,635.28-17,429.16-9,272.16

Finding the Fourth Proportional to 12,635.28, 17,429.16 and 9,272.16

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Solution

The fourth proportional to 12,635.28, 17,429.16 and 9,272.16 is: 12,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.28 : 17,429.16 = 9,272.16 : x
  2. Step 2: Convert to fraction form
    12,635.28/17,429.16 = 9,272.16/x
  3. Step 3: Cross multiply
    12,635.28x = 17,429.16 × 9,272.16
  4. Step 4: Simplify right side
    12,635.28x = 161,605,960.19
  5. Step 5: Solve for x
    x = 161,605,960.19/12,635.28
  6. Step 6: Final answer
    x = 12,790.06

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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.