Home / 15,044.13-20,762.09-8,331.86

Finding the Fourth Proportional to 15,044.13, 20,762.09 and 8,331.86

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Solution

The fourth proportional to 15,044.13, 20,762.09 and 8,331.86 is: 11,498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.13 : 20,762.09 = 8,331.86 : x
  2. Step 2: Convert to fraction form
    15,044.13/20,762.09 = 8,331.86/x
  3. Step 3: Cross multiply
    15,044.13x = 20,762.09 × 8,331.86
  4. Step 4: Simplify right side
    15,044.13x = 172,986,868.68
  5. Step 5: Solve for x
    x = 172,986,868.68/15,044.13
  6. Step 6: Final answer
    x = 11,498.63

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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.