Home / 8,257.80-12,386.40-3,326.10

Finding the Fourth Proportional to 8,257.80, 12,386.40 and 3,326.10

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Solution

The fourth proportional to 8,257.80, 12,386.40 and 3,326.10 is: 4,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.80 : 12,386.40 = 3,326.10 : x
  2. Step 2: Convert to fraction form
    8,257.80/12,386.40 = 3,326.10/x
  3. Step 3: Cross multiply
    8,257.80x = 12,386.40 × 3,326.10
  4. Step 4: Simplify right side
    8,257.80x = 41,198,405.04
  5. Step 5: Solve for x
    x = 41,198,405.04/8,257.80
  6. Step 6: Final answer
    x = 4,989.03

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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.