Home / 10,581.25-15,877.07-4,255.87

Finding the Fourth Proportional to 10,581.25, 15,877.07 and 4,255.87

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Solution

The fourth proportional to 10,581.25, 15,877.07 and 4,255.87 is: 6,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.25 : 15,877.07 = 4,255.87 : x
  2. Step 2: Convert to fraction form
    10,581.25/15,877.07 = 4,255.87/x
  3. Step 3: Cross multiply
    10,581.25x = 15,877.07 × 4,255.87
  4. Step 4: Simplify right side
    10,581.25x = 67,570,776.39
  5. Step 5: Solve for x
    x = 67,570,776.39/10,581.25
  6. Step 6: Final answer
    x = 6,385.90

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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.