Home / 18,934.85-28,408.19-7,846.76

Finding the Fourth Proportional to 18,934.85, 28,408.19 and 7,846.76

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Solution

The fourth proportional to 18,934.85, 28,408.19 and 7,846.76 is: 11,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.85 : 28,408.19 = 7,846.76 : x
  2. Step 2: Convert to fraction form
    18,934.85/28,408.19 = 7,846.76/x
  3. Step 3: Cross multiply
    18,934.85x = 28,408.19 × 7,846.76
  4. Step 4: Simplify right side
    18,934.85x = 222,912,280.75
  5. Step 5: Solve for x
    x = 222,912,280.75/18,934.85
  6. Step 6: Final answer
    x = 11,772.59

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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.