Home / 15,517.13-21,417.28-9,233.15

Finding the Fourth Proportional to 15,517.13, 21,417.28 and 9,233.15

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Solution

The fourth proportional to 15,517.13, 21,417.28 and 9,233.15 is: 12,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.13 : 21,417.28 = 9,233.15 : x
  2. Step 2: Convert to fraction form
    15,517.13/21,417.28 = 9,233.15/x
  3. Step 3: Cross multiply
    15,517.13x = 21,417.28 × 9,233.15
  4. Step 4: Simplify right side
    15,517.13x = 197,748,828.66
  5. Step 5: Solve for x
    x = 197,748,828.66/15,517.13
  6. Step 6: Final answer
    x = 12,743.91

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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.