Home / 14,469.68-21,711.28-5,116.79

Finding the Fourth Proportional to 14,469.68, 21,711.28 and 5,116.79

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Solution

The fourth proportional to 14,469.68, 21,711.28 and 5,116.79 is: 7,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,469.68 : 21,711.28 = 5,116.79 : x
  2. Step 2: Convert to fraction form
    14,469.68/21,711.28 = 5,116.79/x
  3. Step 3: Cross multiply
    14,469.68x = 21,711.28 × 5,116.79
  4. Step 4: Simplify right side
    14,469.68x = 111,091,939.04
  5. Step 5: Solve for x
    x = 111,091,939.04/14,469.68
  6. Step 6: Final answer
    x = 7,677.57

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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.