Home / 8,142.12-12,202.25-4,438.80

Finding the Fourth Proportional to 8,142.12, 12,202.25 and 4,438.80

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Solution

The fourth proportional to 8,142.12, 12,202.25 and 4,438.80 is: 6,652.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.12 : 12,202.25 = 4,438.80 : x
  2. Step 2: Convert to fraction form
    8,142.12/12,202.25 = 4,438.80/x
  3. Step 3: Cross multiply
    8,142.12x = 12,202.25 × 4,438.80
  4. Step 4: Simplify right side
    8,142.12x = 54,163,325.11
  5. Step 5: Solve for x
    x = 54,163,325.11/8,142.12
  6. Step 6: Final answer
    x = 6,652.24

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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.