Home / 18,363.33-25,341.56-9,979.83

Finding the Fourth Proportional to 18,363.33, 25,341.56 and 9,979.83

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Solution

The fourth proportional to 18,363.33, 25,341.56 and 9,979.83 is: 13,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.33 : 25,341.56 = 9,979.83 : x
  2. Step 2: Convert to fraction form
    18,363.33/25,341.56 = 9,979.83/x
  3. Step 3: Cross multiply
    18,363.33x = 25,341.56 × 9,979.83
  4. Step 4: Simplify right side
    18,363.33x = 252,904,460.73
  5. Step 5: Solve for x
    x = 252,904,460.73/18,363.33
  6. Step 6: Final answer
    x = 13,772.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.