Home / 12,465.12-17,201.76-6,876

Finding the Fourth Proportional to 12,465.12, 17,201.76 and 6,876

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Solution

The fourth proportional to 12,465.12, 17,201.76 and 6,876 is: 9,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.12 : 17,201.76 = 6,876 : x
  2. Step 2: Convert to fraction form
    12,465.12/17,201.76 = 6,876/x
  3. Step 3: Cross multiply
    12,465.12x = 17,201.76 × 6,876
  4. Step 4: Simplify right side
    12,465.12x = 118,279,301.76
  5. Step 5: Solve for x
    x = 118,279,301.76/12,465.12
  6. Step 6: Final answer
    x = 9,488.82

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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.