Home / 10,650.21-15,945.17-5,641.20

Finding the Fourth Proportional to 10,650.21, 15,945.17 and 5,641.20

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Solution

The fourth proportional to 10,650.21, 15,945.17 and 5,641.20 is: 8,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,650.21 : 15,945.17 = 5,641.20 : x
  2. Step 2: Convert to fraction form
    10,650.21/15,945.17 = 5,641.20/x
  3. Step 3: Cross multiply
    10,650.21x = 15,945.17 × 5,641.20
  4. Step 4: Simplify right side
    10,650.21x = 89,949,864.80
  5. Step 5: Solve for x
    x = 89,949,864.80/10,650.21
  6. Step 6: Final answer
    x = 8,445.83

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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.