Home / 14,296.64-21,441.68-3,909.20

Finding the Fourth Proportional to 14,296.64, 21,441.68 and 3,909.20

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Solution

The fourth proportional to 14,296.64, 21,441.68 and 3,909.20 is: 5,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,296.64 : 21,441.68 = 3,909.20 : x
  2. Step 2: Convert to fraction form
    14,296.64/21,441.68 = 3,909.20/x
  3. Step 3: Cross multiply
    14,296.64x = 21,441.68 × 3,909.20
  4. Step 4: Simplify right side
    14,296.64x = 83,819,815.46
  5. Step 5: Solve for x
    x = 83,819,815.46/14,296.64
  6. Step 6: Final answer
    x = 5,862.90

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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.