Home / 12,884.22-19,325.38-4,116.78

Finding the Fourth Proportional to 12,884.22, 19,325.38 and 4,116.78

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Solution

The fourth proportional to 12,884.22, 19,325.38 and 4,116.78 is: 6,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.22 : 19,325.38 = 4,116.78 : x
  2. Step 2: Convert to fraction form
    12,884.22/19,325.38 = 4,116.78/x
  3. Step 3: Cross multiply
    12,884.22x = 19,325.38 × 4,116.78
  4. Step 4: Simplify right side
    12,884.22x = 79,558,337.88
  5. Step 5: Solve for x
    x = 79,558,337.88/12,884.22
  6. Step 6: Final answer
    x = 6,174.87

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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.