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Finding the Fourth Proportional to 15,287.72, 22,897.34 and 13,287.72

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Solution

The fourth proportional to 15,287.72, 22,897.34 and 13,287.72 is: 19,901.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.72 : 22,897.34 = 13,287.72 : x
  2. Step 2: Convert to fraction form
    15,287.72/22,897.34 = 13,287.72/x
  3. Step 3: Cross multiply
    15,287.72x = 22,897.34 × 13,287.72
  4. Step 4: Simplify right side
    15,287.72x = 304,253,442.66
  5. Step 5: Solve for x
    x = 304,253,442.66/15,287.72
  6. Step 6: Final answer
    x = 19,901.82

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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.