Home / 11,787.06-17,680.68-5,545.20

Finding the Fourth Proportional to 11,787.06, 17,680.68 and 5,545.20

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Solution

The fourth proportional to 11,787.06, 17,680.68 and 5,545.20 is: 8,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.06 : 17,680.68 = 5,545.20 : x
  2. Step 2: Convert to fraction form
    11,787.06/17,680.68 = 5,545.20/x
  3. Step 3: Cross multiply
    11,787.06x = 17,680.68 × 5,545.20
  4. Step 4: Simplify right side
    11,787.06x = 98,042,906.74
  5. Step 5: Solve for x
    x = 98,042,906.74/11,787.06
  6. Step 6: Final answer
    x = 8,317.84

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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.