Home / 12,372.36-18,561.28-6,135.78

Finding the Fourth Proportional to 12,372.36, 18,561.28 and 6,135.78

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Solution

The fourth proportional to 12,372.36, 18,561.28 and 6,135.78 is: 9,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.36 : 18,561.28 = 6,135.78 : x
  2. Step 2: Convert to fraction form
    12,372.36/18,561.28 = 6,135.78/x
  3. Step 3: Cross multiply
    12,372.36x = 18,561.28 × 6,135.78
  4. Step 4: Simplify right side
    12,372.36x = 113,887,930.60
  5. Step 5: Solve for x
    x = 113,887,930.60/12,372.36
  6. Step 6: Final answer
    x = 9,205.03

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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.