Home / 18,433.81-25,439.97-11,360.71

Finding the Fourth Proportional to 18,433.81, 25,439.97 and 11,360.71

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Solution

The fourth proportional to 18,433.81, 25,439.97 and 11,360.71 is: 15,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433.81 : 25,439.97 = 11,360.71 : x
  2. Step 2: Convert to fraction form
    18,433.81/25,439.97 = 11,360.71/x
  3. Step 3: Cross multiply
    18,433.81x = 25,439.97 × 11,360.71
  4. Step 4: Simplify right side
    18,433.81x = 289,016,121.58
  5. Step 5: Solve for x
    x = 289,016,121.58/18,433.81
  6. Step 6: Final answer
    x = 15,678.59

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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.