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Finding the Fourth Proportional to 9,912.66, 14,868.99 and 2,987.16

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Solution

The fourth proportional to 9,912.66, 14,868.99 and 2,987.16 is: 4,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.66 : 14,868.99 = 2,987.16 : x
  2. Step 2: Convert to fraction form
    9,912.66/14,868.99 = 2,987.16/x
  3. Step 3: Cross multiply
    9,912.66x = 14,868.99 × 2,987.16
  4. Step 4: Simplify right side
    9,912.66x = 44,416,052.17
  5. Step 5: Solve for x
    x = 44,416,052.17/9,912.66
  6. Step 6: Final answer
    x = 4,480.74

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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.