Home / 14,120.52-21,176.72-5,687

Finding the Fourth Proportional to 14,120.52, 21,176.72 and 5,687

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Solution

The fourth proportional to 14,120.52, 21,176.72 and 5,687 is: 8,528.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.52 : 21,176.72 = 5,687 : x
  2. Step 2: Convert to fraction form
    14,120.52/21,176.72 = 5,687/x
  3. Step 3: Cross multiply
    14,120.52x = 21,176.72 × 5,687
  4. Step 4: Simplify right side
    14,120.52x = 120,432,006.64
  5. Step 5: Solve for x
    x = 120,432,006.64/14,120.52
  6. Step 6: Final answer
    x = 8,528.86

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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.