Home / 18,954.38-28,437.84-5,806.86

Finding the Fourth Proportional to 18,954.38, 28,437.84 and 5,806.86

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Solution

The fourth proportional to 18,954.38, 28,437.84 and 5,806.86 is: 8,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.38 : 28,437.84 = 5,806.86 : x
  2. Step 2: Convert to fraction form
    18,954.38/28,437.84 = 5,806.86/x
  3. Step 3: Cross multiply
    18,954.38x = 28,437.84 × 5,806.86
  4. Step 4: Simplify right side
    18,954.38x = 165,134,555.58
  5. Step 5: Solve for x
    x = 165,134,555.58/18,954.38
  6. Step 6: Final answer
    x = 8,712.21

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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.