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Finding the Fourth Proportional to 15,108.97, 20,843.68 and 10,068.28

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Solution

The fourth proportional to 15,108.97, 20,843.68 and 10,068.28 is: 13,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.97 : 20,843.68 = 10,068.28 : x
  2. Step 2: Convert to fraction form
    15,108.97/20,843.68 = 10,068.28/x
  3. Step 3: Cross multiply
    15,108.97x = 20,843.68 × 10,068.28
  4. Step 4: Simplify right side
    15,108.97x = 209,860,006.47
  5. Step 5: Solve for x
    x = 209,860,006.47/15,108.97
  6. Step 6: Final answer
    x = 13,889.76

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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.