Home / 8,687.28-13,031.04-3,756.96

Finding the Fourth Proportional to 8,687.28, 13,031.04 and 3,756.96

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Solution

The fourth proportional to 8,687.28, 13,031.04 and 3,756.96 is: 5,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.28 : 13,031.04 = 3,756.96 : x
  2. Step 2: Convert to fraction form
    8,687.28/13,031.04 = 3,756.96/x
  3. Step 3: Cross multiply
    8,687.28x = 13,031.04 × 3,756.96
  4. Step 4: Simplify right side
    8,687.28x = 48,957,096.04
  5. Step 5: Solve for x
    x = 48,957,096.04/8,687.28
  6. Step 6: Final answer
    x = 5,635.49

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1.5x scale

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.