Home / 15,982.38-22,056.78-8,909.94

Finding the Fourth Proportional to 15,982.38, 22,056.78 and 8,909.94

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Solution

The fourth proportional to 15,982.38, 22,056.78 and 8,909.94 is: 12,296.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.38 : 22,056.78 = 8,909.94 : x
  2. Step 2: Convert to fraction form
    15,982.38/22,056.78 = 8,909.94/x
  3. Step 3: Cross multiply
    15,982.38x = 22,056.78 × 8,909.94
  4. Step 4: Simplify right side
    15,982.38x = 196,524,586.39
  5. Step 5: Solve for x
    x = 196,524,586.39/15,982.38
  6. Step 6: Final answer
    x = 12,296.33

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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.