Home / 18,356.18-27,531.14-5,205.48

Finding the Fourth Proportional to 18,356.18, 27,531.14 and 5,205.48

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Solution

The fourth proportional to 18,356.18, 27,531.14 and 5,205.48 is: 7,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.18 : 27,531.14 = 5,205.48 : x
  2. Step 2: Convert to fraction form
    18,356.18/27,531.14 = 5,205.48/x
  3. Step 3: Cross multiply
    18,356.18x = 27,531.14 × 5,205.48
  4. Step 4: Simplify right side
    18,356.18x = 143,312,772.62
  5. Step 5: Solve for x
    x = 143,312,772.62/18,356.18
  6. Step 6: Final answer
    x = 7,807.33

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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.