Home / 18,474.40-27,715.70-5,325.74

Finding the Fourth Proportional to 18,474.40, 27,715.70 and 5,325.74

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Solution

The fourth proportional to 18,474.40, 27,715.70 and 5,325.74 is: 7,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.40 : 27,715.70 = 5,325.74 : x
  2. Step 2: Convert to fraction form
    18,474.40/27,715.70 = 5,325.74/x
  3. Step 3: Cross multiply
    18,474.40x = 27,715.70 × 5,325.74
  4. Step 4: Simplify right side
    18,474.40x = 147,606,654.78
  5. Step 5: Solve for x
    x = 147,606,654.78/18,474.40
  6. Step 6: Final answer
    x = 7,989.80

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1.5x scale

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.