Home / 17,949.80-24,767.78-9,991.86

Finding the Fourth Proportional to 17,949.80, 24,767.78 and 9,991.86

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Solution

The fourth proportional to 17,949.80, 24,767.78 and 9,991.86 is: 13,787.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,949.80 : 24,767.78 = 9,991.86 : x
  2. Step 2: Convert to fraction form
    17,949.80/24,767.78 = 9,991.86/x
  3. Step 3: Cross multiply
    17,949.80x = 24,767.78 × 9,991.86
  4. Step 4: Simplify right side
    17,949.80x = 247,476,047.43
  5. Step 5: Solve for x
    x = 247,476,047.43/17,949.80
  6. Step 6: Final answer
    x = 13,787.12

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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.