Home / 13,793.70-20,690.55-8,872.95

Finding the Fourth Proportional to 13,793.70, 20,690.55 and 8,872.95

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Solution

The fourth proportional to 13,793.70, 20,690.55 and 8,872.95 is: 13,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.70 : 20,690.55 = 8,872.95 : x
  2. Step 2: Convert to fraction form
    13,793.70/20,690.55 = 8,872.95/x
  3. Step 3: Cross multiply
    13,793.70x = 20,690.55 × 8,872.95
  4. Step 4: Simplify right side
    13,793.70x = 183,586,215.62
  5. Step 5: Solve for x
    x = 183,586,215.62/13,793.70
  6. Step 6: Final answer
    x = 13,309.43

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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.