Home / 8,861.28-13,287.40-2,936.03

Finding the Fourth Proportional to 8,861.28, 13,287.40 and 2,936.03

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Solution

The fourth proportional to 8,861.28, 13,287.40 and 2,936.03 is: 4,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.28 : 13,287.40 = 2,936.03 : x
  2. Step 2: Convert to fraction form
    8,861.28/13,287.40 = 2,936.03/x
  3. Step 3: Cross multiply
    8,861.28x = 13,287.40 × 2,936.03
  4. Step 4: Simplify right side
    8,861.28x = 39,012,205.02
  5. Step 5: Solve for x
    x = 39,012,205.02/8,861.28
  6. Step 6: Final answer
    x = 4,402.55

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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.