Home / 8,931.07-13,399.22-3,999.61

Finding the Fourth Proportional to 8,931.07, 13,399.22 and 3,999.61

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Solution

The fourth proportional to 8,931.07, 13,399.22 and 3,999.61 is: 6,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.07 : 13,399.22 = 3,999.61 : x
  2. Step 2: Convert to fraction form
    8,931.07/13,399.22 = 3,999.61/x
  3. Step 3: Cross multiply
    8,931.07x = 13,399.22 × 3,999.61
  4. Step 4: Simplify right side
    8,931.07x = 53,591,654.30
  5. Step 5: Solve for x
    x = 53,591,654.30/8,931.07
  6. Step 6: Final answer
    x = 6,000.59

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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.