Home / 12,351.10-18,530.12-4,960.75

Finding the Fourth Proportional to 12,351.10, 18,530.12 and 4,960.75

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Solution

The fourth proportional to 12,351.10, 18,530.12 and 4,960.75 is: 7,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.10 : 18,530.12 = 4,960.75 : x
  2. Step 2: Convert to fraction form
    12,351.10/18,530.12 = 4,960.75/x
  3. Step 3: Cross multiply
    12,351.10x = 18,530.12 × 4,960.75
  4. Step 4: Simplify right side
    12,351.10x = 91,923,292.79
  5. Step 5: Solve for x
    x = 91,923,292.79/12,351.10
  6. Step 6: Final answer
    x = 7,442.52

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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.