Home / 10,901.82-15,044.31-6,121.80

Finding the Fourth Proportional to 10,901.82, 15,044.31 and 6,121.80

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Solution

The fourth proportional to 10,901.82, 15,044.31 and 6,121.80 is: 8,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.82 : 15,044.31 = 6,121.80 : x
  2. Step 2: Convert to fraction form
    10,901.82/15,044.31 = 6,121.80/x
  3. Step 3: Cross multiply
    10,901.82x = 15,044.31 × 6,121.80
  4. Step 4: Simplify right side
    10,901.82x = 92,098,256.96
  5. Step 5: Solve for x
    x = 92,098,256.96/10,901.82
  6. Step 6: Final answer
    x = 8,447.97

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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.