Home / 10,391.09-15,549.50-8,324.24

Finding the Fourth Proportional to 10,391.09, 15,549.50 and 8,324.24

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Solution

The fourth proportional to 10,391.09, 15,549.50 and 8,324.24 is: 12,456.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.09 : 15,549.50 = 8,324.24 : x
  2. Step 2: Convert to fraction form
    10,391.09/15,549.50 = 8,324.24/x
  3. Step 3: Cross multiply
    10,391.09x = 15,549.50 × 8,324.24
  4. Step 4: Simplify right side
    10,391.09x = 129,437,712.94
  5. Step 5: Solve for x
    x = 129,437,712.94/10,391.09
  6. Step 6: Final answer
    x = 12,456.61

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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.