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Finding the Fourth Proportional to 9,989.75, 14,908.66 and 8,882.62

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Solution

The fourth proportional to 9,989.75, 14,908.66 and 8,882.62 is: 13,256.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.75 : 14,908.66 = 8,882.62 : x
  2. Step 2: Convert to fraction form
    9,989.75/14,908.66 = 8,882.62/x
  3. Step 3: Cross multiply
    9,989.75x = 14,908.66 × 8,882.62
  4. Step 4: Simplify right side
    9,989.75x = 132,427,902.01
  5. Step 5: Solve for x
    x = 132,427,902.01/9,989.75
  6. Step 6: Final answer
    x = 13,256.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.