Home / 8,540.10-12,811.55-2,695.30

Finding the Fourth Proportional to 8,540.10, 12,811.55 and 2,695.30

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Solution

The fourth proportional to 8,540.10, 12,811.55 and 2,695.30 is: 4,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.10 : 12,811.55 = 2,695.30 : x
  2. Step 2: Convert to fraction form
    8,540.10/12,811.55 = 2,695.30/x
  3. Step 3: Cross multiply
    8,540.10x = 12,811.55 × 2,695.30
  4. Step 4: Simplify right side
    8,540.10x = 34,530,970.72
  5. Step 5: Solve for x
    x = 34,530,970.72/8,540.10
  6. Step 6: Final answer
    x = 4,043.39

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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.