Home / 13,439.98-18,498.24-11,836.14

Finding the Fourth Proportional to 13,439.98, 18,498.24 and 11,836.14

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Solution

The fourth proportional to 13,439.98, 18,498.24 and 11,836.14 is: 16,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.98 : 18,498.24 = 11,836.14 : x
  2. Step 2: Convert to fraction form
    13,439.98/18,498.24 = 11,836.14/x
  3. Step 3: Cross multiply
    13,439.98x = 18,498.24 × 11,836.14
  4. Step 4: Simplify right side
    13,439.98x = 218,947,758.39
  5. Step 5: Solve for x
    x = 218,947,758.39/13,439.98
  6. Step 6: Final answer
    x = 16,290.78

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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.