Home / 18,288.11-27,433.89-5,140.46

Finding the Fourth Proportional to 18,288.11, 27,433.89 and 5,140.46

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Solution

The fourth proportional to 18,288.11, 27,433.89 and 5,140.46 is: 7,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.11 : 27,433.89 = 5,140.46 : x
  2. Step 2: Convert to fraction form
    18,288.11/27,433.89 = 5,140.46/x
  3. Step 3: Cross multiply
    18,288.11x = 27,433.89 × 5,140.46
  4. Step 4: Simplify right side
    18,288.11x = 141,022,882.77
  5. Step 5: Solve for x
    x = 141,022,882.77/18,288.11
  6. Step 6: Final answer
    x = 7,711.18

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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.