Home / 18,826.12-28,243.73-5,677.69

Finding the Fourth Proportional to 18,826.12, 28,243.73 and 5,677.69

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Solution

The fourth proportional to 18,826.12, 28,243.73 and 5,677.69 is: 8,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.12 : 28,243.73 = 5,677.69 : x
  2. Step 2: Convert to fraction form
    18,826.12/28,243.73 = 5,677.69/x
  3. Step 3: Cross multiply
    18,826.12x = 28,243.73 × 5,677.69
  4. Step 4: Simplify right side
    18,826.12x = 160,359,143.38
  5. Step 5: Solve for x
    x = 160,359,143.38/18,826.12
  6. Step 6: Final answer
    x = 8,517.91

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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.