Home / 14,665.88-21,999.17-5,306.78

Finding the Fourth Proportional to 14,665.88, 21,999.17 and 5,306.78

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Solution

The fourth proportional to 14,665.88, 21,999.17 and 5,306.78 is: 7,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.88 : 21,999.17 = 5,306.78 : x
  2. Step 2: Convert to fraction form
    14,665.88/21,999.17 = 5,306.78/x
  3. Step 3: Cross multiply
    14,665.88x = 21,999.17 × 5,306.78
  4. Step 4: Simplify right side
    14,665.88x = 116,744,658.64
  5. Step 5: Solve for x
    x = 116,744,658.64/14,665.88
  6. Step 6: Final answer
    x = 7,960.29

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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.