Home / 18,474.28-27,710.81-5,327.98

Finding the Fourth Proportional to 18,474.28, 27,710.81 and 5,327.98

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Solution

The fourth proportional to 18,474.28, 27,710.81 and 5,327.98 is: 7,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.28 : 27,710.81 = 5,327.98 : x
  2. Step 2: Convert to fraction form
    18,474.28/27,710.81 = 5,327.98/x
  3. Step 3: Cross multiply
    18,474.28x = 27,710.81 × 5,327.98
  4. Step 4: Simplify right side
    18,474.28x = 147,642,565.53
  5. Step 5: Solve for x
    x = 147,642,565.53/18,474.28
  6. Step 6: Final answer
    x = 7,991.79

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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.