Home / 14,517.12-20,034.60-8,144.30

Finding the Fourth Proportional to 14,517.12, 20,034.60 and 8,144.30

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Solution

The fourth proportional to 14,517.12, 20,034.60 and 8,144.30 is: 11,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,517.12 : 20,034.60 = 8,144.30 : x
  2. Step 2: Convert to fraction form
    14,517.12/20,034.60 = 8,144.30/x
  3. Step 3: Cross multiply
    14,517.12x = 20,034.60 × 8,144.30
  4. Step 4: Simplify right side
    14,517.12x = 163,167,792.78
  5. Step 5: Solve for x
    x = 163,167,792.78/14,517.12
  6. Step 6: Final answer
    x = 11,239.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.