Home / 18,820.26-28,236.56-7,732.17

Finding the Fourth Proportional to 18,820.26, 28,236.56 and 7,732.17

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Solution

The fourth proportional to 18,820.26, 28,236.56 and 7,732.17 is: 11,600.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.26 : 28,236.56 = 7,732.17 : x
  2. Step 2: Convert to fraction form
    18,820.26/28,236.56 = 7,732.17/x
  3. Step 3: Cross multiply
    18,820.26x = 28,236.56 × 7,732.17
  4. Step 4: Simplify right side
    18,820.26x = 218,329,882.14
  5. Step 5: Solve for x
    x = 218,329,882.14/18,820.26
  6. Step 6: Final answer
    x = 11,600.79

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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.