Home / 18,827.38-28,221.36-6,343.09

Finding the Fourth Proportional to 18,827.38, 28,221.36 and 6,343.09

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Solution

The fourth proportional to 18,827.38, 28,221.36 and 6,343.09 is: 9,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.38 : 28,221.36 = 6,343.09 : x
  2. Step 2: Convert to fraction form
    18,827.38/28,221.36 = 6,343.09/x
  3. Step 3: Cross multiply
    18,827.38x = 28,221.36 × 6,343.09
  4. Step 4: Simplify right side
    18,827.38x = 179,010,585.58
  5. Step 5: Solve for x
    x = 179,010,585.58/18,827.38
  6. Step 6: Final answer
    x = 9,507.99

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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.