Home / 14,304.64-21,453.68-3,917.20

Finding the Fourth Proportional to 14,304.64, 21,453.68 and 3,917.20

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Solution

The fourth proportional to 14,304.64, 21,453.68 and 3,917.20 is: 5,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304.64 : 21,453.68 = 3,917.20 : x
  2. Step 2: Convert to fraction form
    14,304.64/21,453.68 = 3,917.20/x
  3. Step 3: Cross multiply
    14,304.64x = 21,453.68 × 3,917.20
  4. Step 4: Simplify right side
    14,304.64x = 84,038,355.30
  5. Step 5: Solve for x
    x = 84,038,355.30/14,304.64
  6. Step 6: Final answer
    x = 5,874.90

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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.