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Finding the Fourth Proportional to 8,631.99, 12,948 and 3,701.25

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Solution

The fourth proportional to 8,631.99, 12,948 and 3,701.25 is: 5,551.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.99 : 12,948 = 3,701.25 : x
  2. Step 2: Convert to fraction form
    8,631.99/12,948 = 3,701.25/x
  3. Step 3: Cross multiply
    8,631.99x = 12,948 × 3,701.25
  4. Step 4: Simplify right side
    8,631.99x = 47,923,785
  5. Step 5: Solve for x
    x = 47,923,785/8,631.99
  6. Step 6: Final answer
    x = 5,551.88

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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.