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Finding the Fourth Proportional to 8,899.75, 13,351.52 and 2,660.25

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Solution

The fourth proportional to 8,899.75, 13,351.52 and 2,660.25 is: 3,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.75 : 13,351.52 = 2,660.25 : x
  2. Step 2: Convert to fraction form
    8,899.75/13,351.52 = 2,660.25/x
  3. Step 3: Cross multiply
    8,899.75x = 13,351.52 × 2,660.25
  4. Step 4: Simplify right side
    8,899.75x = 35,518,381.08
  5. Step 5: Solve for x
    x = 35,518,381.08/8,899.75
  6. Step 6: Final answer
    x = 3,990.94

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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.