Home / 12,161.19-18,241.78-2,927.19

Finding the Fourth Proportional to 12,161.19, 18,241.78 and 2,927.19

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Solution

The fourth proportional to 12,161.19, 18,241.78 and 2,927.19 is: 4,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.19 : 18,241.78 = 2,927.19 : x
  2. Step 2: Convert to fraction form
    12,161.19/18,241.78 = 2,927.19/x
  3. Step 3: Cross multiply
    12,161.19x = 18,241.78 × 2,927.19
  4. Step 4: Simplify right side
    12,161.19x = 53,397,156.00
  5. Step 5: Solve for x
    x = 53,397,156.00/12,161.19
  6. Step 6: Final answer
    x = 4,390.78

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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.