Home / 12,132.24-18,201.39-9,642.82

Finding the Fourth Proportional to 12,132.24, 18,201.39 and 9,642.82

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Solution

The fourth proportional to 12,132.24, 18,201.39 and 9,642.82 is: 14,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.24 : 18,201.39 = 9,642.82 : x
  2. Step 2: Convert to fraction form
    12,132.24/18,201.39 = 9,642.82/x
  3. Step 3: Cross multiply
    12,132.24x = 18,201.39 × 9,642.82
  4. Step 4: Simplify right side
    12,132.24x = 175,512,770.33
  5. Step 5: Solve for x
    x = 175,512,770.33/12,132.24
  6. Step 6: Final answer
    x = 14,466.64

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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.