Home / 15,452.91-21,324.97-8,379.28

Finding the Fourth Proportional to 15,452.91, 21,324.97 and 8,379.28

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Solution

The fourth proportional to 15,452.91, 21,324.97 and 8,379.28 is: 11,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.91 : 21,324.97 = 8,379.28 : x
  2. Step 2: Convert to fraction form
    15,452.91/21,324.97 = 8,379.28/x
  3. Step 3: Cross multiply
    15,452.91x = 21,324.97 × 8,379.28
  4. Step 4: Simplify right side
    15,452.91x = 178,687,931.75
  5. Step 5: Solve for x
    x = 178,687,931.75/15,452.91
  6. Step 6: Final answer
    x = 11,563.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.