Home / 12,161.10-18,241.65-12,084.30

Finding the Fourth Proportional to 12,161.10, 18,241.65 and 12,084.30

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Solution

The fourth proportional to 12,161.10, 18,241.65 and 12,084.30 is: 18,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.10 : 18,241.65 = 12,084.30 : x
  2. Step 2: Convert to fraction form
    12,161.10/18,241.65 = 12,084.30/x
  3. Step 3: Cross multiply
    12,161.10x = 18,241.65 × 12,084.30
  4. Step 4: Simplify right side
    12,161.10x = 220,437,571.10
  5. Step 5: Solve for x
    x = 220,437,571.10/12,161.10
  6. Step 6: Final answer
    x = 18,126.45

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Similar ratio
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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.