Home / 13,454.28-20,181.42-5,658.12

Finding the Fourth Proportional to 13,454.28, 20,181.42 and 5,658.12

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Solution

The fourth proportional to 13,454.28, 20,181.42 and 5,658.12 is: 8,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.28 : 20,181.42 = 5,658.12 : x
  2. Step 2: Convert to fraction form
    13,454.28/20,181.42 = 5,658.12/x
  3. Step 3: Cross multiply
    13,454.28x = 20,181.42 × 5,658.12
  4. Step 4: Simplify right side
    13,454.28x = 114,188,896.13
  5. Step 5: Solve for x
    x = 114,188,896.13/13,454.28
  6. Step 6: Final answer
    x = 8,487.18

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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.