Home / 13,766.28-20,642.10-5,445.96

Finding the Fourth Proportional to 13,766.28, 20,642.10 and 5,445.96

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Solution

The fourth proportional to 13,766.28, 20,642.10 and 5,445.96 is: 8,166.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.28 : 20,642.10 = 5,445.96 : x
  2. Step 2: Convert to fraction form
    13,766.28/20,642.10 = 5,445.96/x
  3. Step 3: Cross multiply
    13,766.28x = 20,642.10 × 5,445.96
  4. Step 4: Simplify right side
    13,766.28x = 112,416,050.92
  5. Step 5: Solve for x
    x = 112,416,050.92/13,766.28
  6. Step 6: Final answer
    x = 8,166.04

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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.