Home / 8,162.90-12,242.29-2,239.80

Finding the Fourth Proportional to 8,162.90, 12,242.29 and 2,239.80

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Solution

The fourth proportional to 8,162.90, 12,242.29 and 2,239.80 is: 3,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.90 : 12,242.29 = 2,239.80 : x
  2. Step 2: Convert to fraction form
    8,162.90/12,242.29 = 2,239.80/x
  3. Step 3: Cross multiply
    8,162.90x = 12,242.29 × 2,239.80
  4. Step 4: Simplify right side
    8,162.90x = 27,420,302.70
  5. Step 5: Solve for x
    x = 27,420,302.70/8,162.90
  6. Step 6: Final answer
    x = 3,359.14

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1.5x scale

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.