Home / 8,181.60-12,266.40-3,248.80

Finding the Fourth Proportional to 8,181.60, 12,266.40 and 3,248.80

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Solution

The fourth proportional to 8,181.60, 12,266.40 and 3,248.80 is: 4,870.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.60 : 12,266.40 = 3,248.80 : x
  2. Step 2: Convert to fraction form
    8,181.60/12,266.40 = 3,248.80/x
  3. Step 3: Cross multiply
    8,181.60x = 12,266.40 × 3,248.80
  4. Step 4: Simplify right side
    8,181.60x = 39,851,080.32
  5. Step 5: Solve for x
    x = 39,851,080.32/8,181.60
  6. Step 6: Final answer
    x = 4,870.82

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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.