Home / 15,508.14-21,400.52-8,793.60

Finding the Fourth Proportional to 15,508.14, 21,400.52 and 8,793.60

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Solution

The fourth proportional to 15,508.14, 21,400.52 and 8,793.60 is: 12,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.14 : 21,400.52 = 8,793.60 : x
  2. Step 2: Convert to fraction form
    15,508.14/21,400.52 = 8,793.60/x
  3. Step 3: Cross multiply
    15,508.14x = 21,400.52 × 8,793.60
  4. Step 4: Simplify right side
    15,508.14x = 188,187,568.70
  5. Step 5: Solve for x
    x = 188,187,568.70/15,508.14
  6. Step 6: Final answer
    x = 12,134.76

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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.