Home / 18,685.82-25,787.99-10,729.59

Finding the Fourth Proportional to 18,685.82, 25,787.99 and 10,729.59

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Solution

The fourth proportional to 18,685.82, 25,787.99 and 10,729.59 is: 14,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.82 : 25,787.99 = 10,729.59 : x
  2. Step 2: Convert to fraction form
    18,685.82/25,787.99 = 10,729.59/x
  3. Step 3: Cross multiply
    18,685.82x = 25,787.99 × 10,729.59
  4. Step 4: Simplify right side
    18,685.82x = 276,694,505.98
  5. Step 5: Solve for x
    x = 276,694,505.98/18,685.82
  6. Step 6: Final answer
    x = 14,807.73

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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.