Home / 17,979.78-26,974.98-9,220.80

Finding the Fourth Proportional to 17,979.78, 26,974.98 and 9,220.80

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Solution

The fourth proportional to 17,979.78, 26,974.98 and 9,220.80 is: 13,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.78 : 26,974.98 = 9,220.80 : x
  2. Step 2: Convert to fraction form
    17,979.78/26,974.98 = 9,220.80/x
  3. Step 3: Cross multiply
    17,979.78x = 26,974.98 × 9,220.80
  4. Step 4: Simplify right side
    17,979.78x = 248,730,895.58
  5. Step 5: Solve for x
    x = 248,730,895.58/17,979.78
  6. Step 6: Final answer
    x = 13,833.92

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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.