Home / 11,948.92-16,476.18-8,172.70

Finding the Fourth Proportional to 11,948.92, 16,476.18 and 8,172.70

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Solution

The fourth proportional to 11,948.92, 16,476.18 and 8,172.70 is: 11,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.92 : 16,476.18 = 8,172.70 : x
  2. Step 2: Convert to fraction form
    11,948.92/16,476.18 = 8,172.70/x
  3. Step 3: Cross multiply
    11,948.92x = 16,476.18 × 8,172.70
  4. Step 4: Simplify right side
    11,948.92x = 134,654,876.29
  5. Step 5: Solve for x
    x = 134,654,876.29/11,948.92
  6. Step 6: Final answer
    x = 11,269.21

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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.