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Finding the Fourth Proportional to 9,912.54, 14,868.82 and 2,987.04

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Solution

The fourth proportional to 9,912.54, 14,868.82 and 2,987.04 is: 4,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.54 : 14,868.82 = 2,987.04 : x
  2. Step 2: Convert to fraction form
    9,912.54/14,868.82 = 2,987.04/x
  3. Step 3: Cross multiply
    9,912.54x = 14,868.82 × 2,987.04
  4. Step 4: Simplify right side
    9,912.54x = 44,413,760.09
  5. Step 5: Solve for x
    x = 44,413,760.09/9,912.54
  6. Step 6: Final answer
    x = 4,480.56

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Similar ratio
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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.