Home / 12,280.18-16,946.68-6,691.18

Finding the Fourth Proportional to 12,280.18, 16,946.68 and 6,691.18

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Solution

The fourth proportional to 12,280.18, 16,946.68 and 6,691.18 is: 9,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.18 : 16,946.68 = 6,691.18 : x
  2. Step 2: Convert to fraction form
    12,280.18/16,946.68 = 6,691.18/x
  3. Step 3: Cross multiply
    12,280.18x = 16,946.68 × 6,691.18
  4. Step 4: Simplify right side
    12,280.18x = 113,393,286.28
  5. Step 5: Solve for x
    x = 113,393,286.28/12,280.18
  6. Step 6: Final answer
    x = 9,233.85

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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.