Home / 11,220.20-15,465.66-8,974.88

Finding the Fourth Proportional to 11,220.20, 15,465.66 and 8,974.88

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Solution

The fourth proportional to 11,220.20, 15,465.66 and 8,974.88 is: 12,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.20 : 15,465.66 = 8,974.88 : x
  2. Step 2: Convert to fraction form
    11,220.20/15,465.66 = 8,974.88/x
  3. Step 3: Cross multiply
    11,220.20x = 15,465.66 × 8,974.88
  4. Step 4: Simplify right side
    11,220.20x = 138,802,442.62
  5. Step 5: Solve for x
    x = 138,802,442.62/11,220.20
  6. Step 6: Final answer
    x = 12,370.76

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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.