Home / 13,731.80-18,935.62-11,748.92

Finding the Fourth Proportional to 13,731.80, 18,935.62 and 11,748.92

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Solution

The fourth proportional to 13,731.80, 18,935.62 and 11,748.92 is: 16,201.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.80 : 18,935.62 = 11,748.92 : x
  2. Step 2: Convert to fraction form
    13,731.80/18,935.62 = 11,748.92/x
  3. Step 3: Cross multiply
    13,731.80x = 18,935.62 × 11,748.92
  4. Step 4: Simplify right side
    13,731.80x = 222,473,084.53
  5. Step 5: Solve for x
    x = 222,473,084.53/13,731.80
  6. Step 6: Final answer
    x = 16,201.31

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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.