Home / 14,149.90-21,223.61-4,789.71

Finding the Fourth Proportional to 14,149.90, 21,223.61 and 4,789.71

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Solution

The fourth proportional to 14,149.90, 21,223.61 and 4,789.71 is: 7,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.90 : 21,223.61 = 4,789.71 : x
  2. Step 2: Convert to fraction form
    14,149.90/21,223.61 = 4,789.71/x
  3. Step 3: Cross multiply
    14,149.90x = 21,223.61 × 4,789.71
  4. Step 4: Simplify right side
    14,149.90x = 101,654,937.05
  5. Step 5: Solve for x
    x = 101,654,937.05/14,149.90
  6. Step 6: Final answer
    x = 7,184.15

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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.