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Finding the Fourth Proportional to 10,883.73, 15,049.70 and 8,641.65

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Solution

The fourth proportional to 10,883.73, 15,049.70 and 8,641.65 is: 11,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,883.73 : 15,049.70 = 8,641.65 : x
  2. Step 2: Convert to fraction form
    10,883.73/15,049.70 = 8,641.65/x
  3. Step 3: Cross multiply
    10,883.73x = 15,049.70 × 8,641.65
  4. Step 4: Simplify right side
    10,883.73x = 130,054,196.80
  5. Step 5: Solve for x
    x = 130,054,196.80/10,883.73
  6. Step 6: Final answer
    x = 11,949.41

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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.