Home / 8,540.60-12,808.44-3,345.24

Finding the Fourth Proportional to 8,540.60, 12,808.44 and 3,345.24

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Solution

The fourth proportional to 8,540.60, 12,808.44 and 3,345.24 is: 5,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.60 : 12,808.44 = 3,345.24 : x
  2. Step 2: Convert to fraction form
    8,540.60/12,808.44 = 3,345.24/x
  3. Step 3: Cross multiply
    8,540.60x = 12,808.44 × 3,345.24
  4. Step 4: Simplify right side
    8,540.60x = 42,847,305.83
  5. Step 5: Solve for x
    x = 42,847,305.83/8,540.60
  6. Step 6: Final answer
    x = 5,016.90

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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.