Home / 18,387.27-27,576.05-5,240.39

Finding the Fourth Proportional to 18,387.27, 27,576.05 and 5,240.39

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Solution

The fourth proportional to 18,387.27, 27,576.05 and 5,240.39 is: 7,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.27 : 27,576.05 = 5,240.39 : x
  2. Step 2: Convert to fraction form
    18,387.27/27,576.05 = 5,240.39/x
  3. Step 3: Cross multiply
    18,387.27x = 27,576.05 × 5,240.39
  4. Step 4: Simplify right side
    18,387.27x = 144,509,092.58
  5. Step 5: Solve for x
    x = 144,509,092.58/18,387.27
  6. Step 6: Final answer
    x = 7,859.19

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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.