Home / 15,841.17-21,866.28-9,129.48

Finding the Fourth Proportional to 15,841.17, 21,866.28 and 9,129.48

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Solution

The fourth proportional to 15,841.17, 21,866.28 and 9,129.48 is: 12,601.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.17 : 21,866.28 = 9,129.48 : x
  2. Step 2: Convert to fraction form
    15,841.17/21,866.28 = 9,129.48/x
  3. Step 3: Cross multiply
    15,841.17x = 21,866.28 × 9,129.48
  4. Step 4: Simplify right side
    15,841.17x = 199,627,649.70
  5. Step 5: Solve for x
    x = 199,627,649.70/15,841.17
  6. Step 6: Final answer
    x = 12,601.82

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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.