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Finding the Fourth Proportional to 15,053.97, 20,775.07 and 8,339.47

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Solution

The fourth proportional to 15,053.97, 20,775.07 and 8,339.47 is: 11,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.97 : 20,775.07 = 8,339.47 : x
  2. Step 2: Convert to fraction form
    15,053.97/20,775.07 = 8,339.47/x
  3. Step 3: Cross multiply
    15,053.97x = 20,775.07 × 8,339.47
  4. Step 4: Simplify right side
    15,053.97x = 173,253,073.01
  5. Step 5: Solve for x
    x = 173,253,073.01/15,053.97
  6. Step 6: Final answer
    x = 11,508.80

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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.