Home / 12,372.36-18,563.40-5,442

Finding the Fourth Proportional to 12,372.36, 18,563.40 and 5,442

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Solution

The fourth proportional to 12,372.36, 18,563.40 and 5,442 is: 8,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.36 : 18,563.40 = 5,442 : x
  2. Step 2: Convert to fraction form
    12,372.36/18,563.40 = 5,442/x
  3. Step 3: Cross multiply
    12,372.36x = 18,563.40 × 5,442
  4. Step 4: Simplify right side
    12,372.36x = 101,022,022.80
  5. Step 5: Solve for x
    x = 101,022,022.80/12,372.36
  6. Step 6: Final answer
    x = 8,165.14

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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.