Home / 18,293.72-27,437.40-5,142.97

Finding the Fourth Proportional to 18,293.72, 27,437.40 and 5,142.97

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Solution

The fourth proportional to 18,293.72, 27,437.40 and 5,142.97 is: 7,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.72 : 27,437.40 = 5,142.97 : x
  2. Step 2: Convert to fraction form
    18,293.72/27,437.40 = 5,142.97/x
  3. Step 3: Cross multiply
    18,293.72x = 27,437.40 × 5,142.97
  4. Step 4: Simplify right side
    18,293.72x = 141,109,725.08
  5. Step 5: Solve for x
    x = 141,109,725.08/18,293.72
  6. Step 6: Final answer
    x = 7,713.56

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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.