Home / 14,885.60-20,542.22-8,171.52

Finding the Fourth Proportional to 14,885.60, 20,542.22 and 8,171.52

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Solution

The fourth proportional to 14,885.60, 20,542.22 and 8,171.52 is: 11,276.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.60 : 20,542.22 = 8,171.52 : x
  2. Step 2: Convert to fraction form
    14,885.60/20,542.22 = 8,171.52/x
  3. Step 3: Cross multiply
    14,885.60x = 20,542.22 × 8,171.52
  4. Step 4: Simplify right side
    14,885.60x = 167,861,161.57
  5. Step 5: Solve for x
    x = 167,861,161.57/14,885.60
  6. Step 6: Final answer
    x = 11,276.75

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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.