Home / 14,299.28-21,446.52-3,909.20

Finding the Fourth Proportional to 14,299.28, 21,446.52 and 3,909.20

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Solution

The fourth proportional to 14,299.28, 21,446.52 and 3,909.20 is: 5,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,299.28 : 21,446.52 = 3,909.20 : x
  2. Step 2: Convert to fraction form
    14,299.28/21,446.52 = 3,909.20/x
  3. Step 3: Cross multiply
    14,299.28x = 21,446.52 × 3,909.20
  4. Step 4: Simplify right side
    14,299.28x = 83,838,735.98
  5. Step 5: Solve for x
    x = 83,838,735.98/14,299.28
  6. Step 6: Final answer
    x = 5,863.14

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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.