Home / 18,081.86-27,123.08-5,432.11

Finding the Fourth Proportional to 18,081.86, 27,123.08 and 5,432.11

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Solution

The fourth proportional to 18,081.86, 27,123.08 and 5,432.11 is: 8,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.86 : 27,123.08 = 5,432.11 : x
  2. Step 2: Convert to fraction form
    18,081.86/27,123.08 = 5,432.11/x
  3. Step 3: Cross multiply
    18,081.86x = 27,123.08 × 5,432.11
  4. Step 4: Simplify right side
    18,081.86x = 147,335,499.87
  5. Step 5: Solve for x
    x = 147,335,499.87/18,081.86
  6. Step 6: Final answer
    x = 8,148.25

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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.