Home / 8,157.20-12,233.20-3,477.12

Finding the Fourth Proportional to 8,157.20, 12,233.20 and 3,477.12

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Solution

The fourth proportional to 8,157.20, 12,233.20 and 3,477.12 is: 5,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.20 : 12,233.20 = 3,477.12 : x
  2. Step 2: Convert to fraction form
    8,157.20/12,233.20 = 3,477.12/x
  3. Step 3: Cross multiply
    8,157.20x = 12,233.20 × 3,477.12
  4. Step 4: Simplify right side
    8,157.20x = 42,536,304.38
  5. Step 5: Solve for x
    x = 42,536,304.38/8,157.20
  6. Step 6: Final answer
    x = 5,214.57

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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.