Home / 18,714.24-28,072.56-7,614.87

Finding the Fourth Proportional to 18,714.24, 28,072.56 and 7,614.87

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Solution

The fourth proportional to 18,714.24, 28,072.56 and 7,614.87 is: 11,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.24 : 28,072.56 = 7,614.87 : x
  2. Step 2: Convert to fraction form
    18,714.24/28,072.56 = 7,614.87/x
  3. Step 3: Cross multiply
    18,714.24x = 28,072.56 × 7,614.87
  4. Step 4: Simplify right side
    18,714.24x = 213,768,894.97
  5. Step 5: Solve for x
    x = 213,768,894.97/18,714.24
  6. Step 6: Final answer
    x = 11,422.79

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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.