Home / 12,195.18-16,811.10-9,538.02

Finding the Fourth Proportional to 12,195.18, 16,811.10 and 9,538.02

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Solution

The fourth proportional to 12,195.18, 16,811.10 and 9,538.02 is: 13,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.18 : 16,811.10 = 9,538.02 : x
  2. Step 2: Convert to fraction form
    12,195.18/16,811.10 = 9,538.02/x
  3. Step 3: Cross multiply
    12,195.18x = 16,811.10 × 9,538.02
  4. Step 4: Simplify right side
    12,195.18x = 160,344,608.02
  5. Step 5: Solve for x
    x = 160,344,608.02/12,195.18
  6. Step 6: Final answer
    x = 13,148.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.