Home / 8,372.46-12,558.96-3,987.66

Finding the Fourth Proportional to 8,372.46, 12,558.96 and 3,987.66

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Solution

The fourth proportional to 8,372.46, 12,558.96 and 3,987.66 is: 5,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.46 : 12,558.96 = 3,987.66 : x
  2. Step 2: Convert to fraction form
    8,372.46/12,558.96 = 3,987.66/x
  3. Step 3: Cross multiply
    8,372.46x = 12,558.96 × 3,987.66
  4. Step 4: Simplify right side
    8,372.46x = 50,080,862.43
  5. Step 5: Solve for x
    x = 50,080,862.43/8,372.46
  6. Step 6: Final answer
    x = 5,981.62

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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.