Home / 17,949.28-24,769.58-9,991.32

Finding the Fourth Proportional to 17,949.28, 24,769.58 and 9,991.32

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Solution

The fourth proportional to 17,949.28, 24,769.58 and 9,991.32 is: 13,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,949.28 : 24,769.58 = 9,991.32 : x
  2. Step 2: Convert to fraction form
    17,949.28/24,769.58 = 9,991.32/x
  3. Step 3: Cross multiply
    17,949.28x = 24,769.58 × 9,991.32
  4. Step 4: Simplify right side
    17,949.28x = 247,480,800.05
  5. Step 5: Solve for x
    x = 247,480,800.05/17,949.28
  6. Step 6: Final answer
    x = 13,787.78

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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.