Home / 8,421.45-12,635.16-3,741.04

Finding the Fourth Proportional to 8,421.45, 12,635.16 and 3,741.04

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Solution

The fourth proportional to 8,421.45, 12,635.16 and 3,741.04 is: 5,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.45 : 12,635.16 = 3,741.04 : x
  2. Step 2: Convert to fraction form
    8,421.45/12,635.16 = 3,741.04/x
  3. Step 3: Cross multiply
    8,421.45x = 12,635.16 × 3,741.04
  4. Step 4: Simplify right side
    8,421.45x = 47,268,569.66
  5. Step 5: Solve for x
    x = 47,268,569.66/8,421.45
  6. Step 6: Final answer
    x = 5,612.88

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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.