Home / 18,830.97-25,988.72-11,660.31

Finding the Fourth Proportional to 18,830.97, 25,988.72 and 11,660.31

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Solution

The fourth proportional to 18,830.97, 25,988.72 and 11,660.31 is: 16,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.97 : 25,988.72 = 11,660.31 : x
  2. Step 2: Convert to fraction form
    18,830.97/25,988.72 = 11,660.31/x
  3. Step 3: Cross multiply
    18,830.97x = 25,988.72 × 11,660.31
  4. Step 4: Simplify right side
    18,830.97x = 303,036,473.40
  5. Step 5: Solve for x
    x = 303,036,473.40/18,830.97
  6. Step 6: Final answer
    x = 16,092.45

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Similar ratio
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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.