Home / 14,687.28-20,269.62-8,400.84

Finding the Fourth Proportional to 14,687.28, 20,269.62 and 8,400.84

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Solution

The fourth proportional to 14,687.28, 20,269.62 and 8,400.84 is: 11,593.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.28 : 20,269.62 = 8,400.84 : x
  2. Step 2: Convert to fraction form
    14,687.28/20,269.62 = 8,400.84/x
  3. Step 3: Cross multiply
    14,687.28x = 20,269.62 × 8,400.84
  4. Step 4: Simplify right side
    14,687.28x = 170,281,834.48
  5. Step 5: Solve for x
    x = 170,281,834.48/14,687.28
  6. Step 6: Final answer
    x = 11,593.83

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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.