Home / 18,074.49-27,112.55-7,942.20

Finding the Fourth Proportional to 18,074.49, 27,112.55 and 7,942.20

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Solution

The fourth proportional to 18,074.49, 27,112.55 and 7,942.20 is: 11,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074.49 : 27,112.55 = 7,942.20 : x
  2. Step 2: Convert to fraction form
    18,074.49/27,112.55 = 7,942.20/x
  3. Step 3: Cross multiply
    18,074.49x = 27,112.55 × 7,942.20
  4. Step 4: Simplify right side
    18,074.49x = 215,333,254.90
  5. Step 5: Solve for x
    x = 215,333,254.90/18,074.49
  6. Step 6: Final answer
    x = 11,913.66

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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.