Home / 10,366.82-15,550.19-8,631.78

Finding the Fourth Proportional to 10,366.82, 15,550.19 and 8,631.78

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Solution

The fourth proportional to 10,366.82, 15,550.19 and 8,631.78 is: 12,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.82 : 15,550.19 = 8,631.78 : x
  2. Step 2: Convert to fraction form
    10,366.82/15,550.19 = 8,631.78/x
  3. Step 3: Cross multiply
    10,366.82x = 15,550.19 × 8,631.78
  4. Step 4: Simplify right side
    10,366.82x = 134,225,819.04
  5. Step 5: Solve for x
    x = 134,225,819.04/10,366.82
  6. Step 6: Final answer
    x = 12,947.64

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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.