Home / 8,970.88-13,458.37-2,731.78

Finding the Fourth Proportional to 8,970.88, 13,458.37 and 2,731.78

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Solution

The fourth proportional to 8,970.88, 13,458.37 and 2,731.78 is: 4,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.88 : 13,458.37 = 2,731.78 : x
  2. Step 2: Convert to fraction form
    8,970.88/13,458.37 = 2,731.78/x
  3. Step 3: Cross multiply
    8,970.88x = 13,458.37 × 2,731.78
  4. Step 4: Simplify right side
    8,970.88x = 36,765,306.00
  5. Step 5: Solve for x
    x = 36,765,306.00/8,970.88
  6. Step 6: Final answer
    x = 4,098.29

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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.