Home / 12,216-18,324.88-8,949.76

Finding the Fourth Proportional to 12,216, 18,324.88 and 8,949.76

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Solution

The fourth proportional to 12,216, 18,324.88 and 8,949.76 is: 13,425.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216 : 18,324.88 = 8,949.76 : x
  2. Step 2: Convert to fraction form
    12,216/18,324.88 = 8,949.76/x
  3. Step 3: Cross multiply
    12,216x = 18,324.88 × 8,949.76
  4. Step 4: Simplify right side
    12,216x = 164,003,278.03
  5. Step 5: Solve for x
    x = 164,003,278.03/12,216
  6. Step 6: Final answer
    x = 13,425.28

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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.