Home / 8,837.20-13,251.48-5,140.72

Finding the Fourth Proportional to 8,837.20, 13,251.48 and 5,140.72

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Solution

The fourth proportional to 8,837.20, 13,251.48 and 5,140.72 is: 7,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,837.20 : 13,251.48 = 5,140.72 : x
  2. Step 2: Convert to fraction form
    8,837.20/13,251.48 = 5,140.72/x
  3. Step 3: Cross multiply
    8,837.20x = 13,251.48 × 5,140.72
  4. Step 4: Simplify right side
    8,837.20x = 68,122,148.27
  5. Step 5: Solve for x
    x = 68,122,148.27/8,837.20
  6. Step 6: Final answer
    x = 7,708.57

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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.