Home / 16,982.60-25,432.86-8,640.68

Finding the Fourth Proportional to 16,982.60, 25,432.86 and 8,640.68

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Solution

The fourth proportional to 16,982.60, 25,432.86 and 8,640.68 is: 12,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.60 : 25,432.86 = 8,640.68 : x
  2. Step 2: Convert to fraction form
    16,982.60/25,432.86 = 8,640.68/x
  3. Step 3: Cross multiply
    16,982.60x = 25,432.86 × 8,640.68
  4. Step 4: Simplify right side
    16,982.60x = 219,757,204.74
  5. Step 5: Solve for x
    x = 219,757,204.74/16,982.60
  6. Step 6: Final answer
    x = 12,940.14

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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.