Home / 18,534.80-27,806.52-5,387.42

Finding the Fourth Proportional to 18,534.80, 27,806.52 and 5,387.42

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Solution

The fourth proportional to 18,534.80, 27,806.52 and 5,387.42 is: 8,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,534.80 : 27,806.52 = 5,387.42 : x
  2. Step 2: Convert to fraction form
    18,534.80/27,806.52 = 5,387.42/x
  3. Step 3: Cross multiply
    18,534.80x = 27,806.52 × 5,387.42
  4. Step 4: Simplify right side
    18,534.80x = 149,805,401.98
  5. Step 5: Solve for x
    x = 149,805,401.98/18,534.80
  6. Step 6: Final answer
    x = 8,082.39

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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.