Home / 15,646.46-21,591.78-8,572.73

Finding the Fourth Proportional to 15,646.46, 21,591.78 and 8,572.73

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Solution

The fourth proportional to 15,646.46, 21,591.78 and 8,572.73 is: 11,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646.46 : 21,591.78 = 8,572.73 : x
  2. Step 2: Convert to fraction form
    15,646.46/21,591.78 = 8,572.73/x
  3. Step 3: Cross multiply
    15,646.46x = 21,591.78 × 8,572.73
  4. Step 4: Simplify right side
    15,646.46x = 185,100,500.16
  5. Step 5: Solve for x
    x = 185,100,500.16/15,646.46
  6. Step 6: Final answer
    x = 11,830.18

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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.