Home / 18,219.84-27,329.28-5,073.12

Finding the Fourth Proportional to 18,219.84, 27,329.28 and 5,073.12

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Solution

The fourth proportional to 18,219.84, 27,329.28 and 5,073.12 is: 7,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.84 : 27,329.28 = 5,073.12 : x
  2. Step 2: Convert to fraction form
    18,219.84/27,329.28 = 5,073.12/x
  3. Step 3: Cross multiply
    18,219.84x = 27,329.28 × 5,073.12
  4. Step 4: Simplify right side
    18,219.84x = 138,644,716.95
  5. Step 5: Solve for x
    x = 138,644,716.95/18,219.84
  6. Step 6: Final answer
    x = 7,609.55

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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.