Home / 11,519.10-15,892.20-7,542.48

Finding the Fourth Proportional to 11,519.10, 15,892.20 and 7,542.48

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Solution

The fourth proportional to 11,519.10, 15,892.20 and 7,542.48 is: 10,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,519.10 : 15,892.20 = 7,542.48 : x
  2. Step 2: Convert to fraction form
    11,519.10/15,892.20 = 7,542.48/x
  3. Step 3: Cross multiply
    11,519.10x = 15,892.20 × 7,542.48
  4. Step 4: Simplify right side
    11,519.10x = 119,866,600.66
  5. Step 5: Solve for x
    x = 119,866,600.66/11,519.10
  6. Step 6: Final answer
    x = 10,405.90

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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.