Home / 8,931.40-13,399.02-3,008.88

Finding the Fourth Proportional to 8,931.40, 13,399.02 and 3,008.88

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Solution

The fourth proportional to 8,931.40, 13,399.02 and 3,008.88 is: 4,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.40 : 13,399.02 = 3,008.88 : x
  2. Step 2: Convert to fraction form
    8,931.40/13,399.02 = 3,008.88/x
  3. Step 3: Cross multiply
    8,931.40x = 13,399.02 × 3,008.88
  4. Step 4: Simplify right side
    8,931.40x = 40,315,976.30
  5. Step 5: Solve for x
    x = 40,315,976.30/8,931.40
  6. Step 6: Final answer
    x = 4,513.96

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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.