Home / 8,931.31-13,399.02-3,087.92

Finding the Fourth Proportional to 8,931.31, 13,399.02 and 3,087.92

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Solution

The fourth proportional to 8,931.31, 13,399.02 and 3,087.92 is: 4,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.31 : 13,399.02 = 3,087.92 : x
  2. Step 2: Convert to fraction form
    8,931.31/13,399.02 = 3,087.92/x
  3. Step 3: Cross multiply
    8,931.31x = 13,399.02 × 3,087.92
  4. Step 4: Simplify right side
    8,931.31x = 41,375,135.34
  5. Step 5: Solve for x
    x = 41,375,135.34/8,931.31
  6. Step 6: Final answer
    x = 4,632.59

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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.