Home / 13,769.92-18,988.14-11,787.04

Finding the Fourth Proportional to 13,769.92, 18,988.14 and 11,787.04

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Solution

The fourth proportional to 13,769.92, 18,988.14 and 11,787.04 is: 16,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.92 : 18,988.14 = 11,787.04 : x
  2. Step 2: Convert to fraction form
    13,769.92/18,988.14 = 11,787.04/x
  3. Step 3: Cross multiply
    13,769.92x = 18,988.14 × 11,787.04
  4. Step 4: Simplify right side
    13,769.92x = 223,813,965.71
  5. Step 5: Solve for x
    x = 223,813,965.71/13,769.92
  6. Step 6: Final answer
    x = 16,253.83

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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.