Home / 18,475.12-27,715.41-6,787.43

Finding the Fourth Proportional to 18,475.12, 27,715.41 and 6,787.43

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Solution

The fourth proportional to 18,475.12, 27,715.41 and 6,787.43 is: 10,182.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.12 : 27,715.41 = 6,787.43 : x
  2. Step 2: Convert to fraction form
    18,475.12/27,715.41 = 6,787.43/x
  3. Step 3: Cross multiply
    18,475.12x = 27,715.41 × 6,787.43
  4. Step 4: Simplify right side
    18,475.12x = 188,116,232.78
  5. Step 5: Solve for x
    x = 188,116,232.78/18,475.12
  6. Step 6: Final answer
    x = 10,182.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.