Home / 13,772.68-20,658.98-3,912.04

Finding the Fourth Proportional to 13,772.68, 20,658.98 and 3,912.04

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Solution

The fourth proportional to 13,772.68, 20,658.98 and 3,912.04 is: 5,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.68 : 20,658.98 = 3,912.04 : x
  2. Step 2: Convert to fraction form
    13,772.68/20,658.98 = 3,912.04/x
  3. Step 3: Cross multiply
    13,772.68x = 20,658.98 × 3,912.04
  4. Step 4: Simplify right side
    13,772.68x = 80,818,756.12
  5. Step 5: Solve for x
    x = 80,818,756.12/13,772.68
  6. Step 6: Final answer
    x = 5,868.05

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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.