Home / 15,508.48-21,401.91-8,793.97

Finding the Fourth Proportional to 15,508.48, 21,401.91 and 8,793.97

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Solution

The fourth proportional to 15,508.48, 21,401.91 and 8,793.97 is: 12,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.48 : 21,401.91 = 8,793.97 : x
  2. Step 2: Convert to fraction form
    15,508.48/21,401.91 = 8,793.97/x
  3. Step 3: Cross multiply
    15,508.48x = 21,401.91 × 8,793.97
  4. Step 4: Simplify right side
    15,508.48x = 188,207,754.48
  5. Step 5: Solve for x
    x = 188,207,754.48/15,508.48
  6. Step 6: Final answer
    x = 12,135.80

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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.