Home / 12,328.11-18,496.82-7,401.18

Finding the Fourth Proportional to 12,328.11, 18,496.82 and 7,401.18

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Solution

The fourth proportional to 12,328.11, 18,496.82 and 7,401.18 is: 11,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.11 : 18,496.82 = 7,401.18 : x
  2. Step 2: Convert to fraction form
    12,328.11/18,496.82 = 7,401.18/x
  3. Step 3: Cross multiply
    12,328.11x = 18,496.82 × 7,401.18
  4. Step 4: Simplify right side
    12,328.11x = 136,898,257.24
  5. Step 5: Solve for x
    x = 136,898,257.24/12,328.11
  6. Step 6: Final answer
    x = 11,104.57

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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.