Home / 12,169.80-18,254.70-8,233.20

Finding the Fourth Proportional to 12,169.80, 18,254.70 and 8,233.20

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Solution

The fourth proportional to 12,169.80, 18,254.70 and 8,233.20 is: 12,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.80 : 18,254.70 = 8,233.20 : x
  2. Step 2: Convert to fraction form
    12,169.80/18,254.70 = 8,233.20/x
  3. Step 3: Cross multiply
    12,169.80x = 18,254.70 × 8,233.20
  4. Step 4: Simplify right side
    12,169.80x = 150,294,596.04
  5. Step 5: Solve for x
    x = 150,294,596.04/12,169.80
  6. Step 6: Final answer
    x = 12,349.80

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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.