Home / 10,551.52-15,816.12-3,974.86

Finding the Fourth Proportional to 10,551.52, 15,816.12 and 3,974.86

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Solution

The fourth proportional to 10,551.52, 15,816.12 and 3,974.86 is: 5,958.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.52 : 15,816.12 = 3,974.86 : x
  2. Step 2: Convert to fraction form
    10,551.52/15,816.12 = 3,974.86/x
  3. Step 3: Cross multiply
    10,551.52x = 15,816.12 × 3,974.86
  4. Step 4: Simplify right side
    10,551.52x = 62,866,862.74
  5. Step 5: Solve for x
    x = 62,866,862.74/10,551.52
  6. Step 6: Final answer
    x = 5,958.09

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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.