Home / 10,107.45-15,161.22-5,519.61

Finding the Fourth Proportional to 10,107.45, 15,161.22 and 5,519.61

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Solution

The fourth proportional to 10,107.45, 15,161.22 and 5,519.61 is: 8,279.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.45 : 15,161.22 = 5,519.61 : x
  2. Step 2: Convert to fraction form
    10,107.45/15,161.22 = 5,519.61/x
  3. Step 3: Cross multiply
    10,107.45x = 15,161.22 × 5,519.61
  4. Step 4: Simplify right side
    10,107.45x = 83,684,021.52
  5. Step 5: Solve for x
    x = 83,684,021.52/10,107.45
  6. Step 6: Final answer
    x = 8,279.44

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Double scale
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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.