Home / 12,540.24-18,812.69-6,304.65

Finding the Fourth Proportional to 12,540.24, 18,812.69 and 6,304.65

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Solution

The fourth proportional to 12,540.24, 18,812.69 and 6,304.65 is: 9,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.24 : 18,812.69 = 6,304.65 : x
  2. Step 2: Convert to fraction form
    12,540.24/18,812.69 = 6,304.65/x
  3. Step 3: Cross multiply
    12,540.24x = 18,812.69 × 6,304.65
  4. Step 4: Simplify right side
    12,540.24x = 118,607,394.49
  5. Step 5: Solve for x
    x = 118,607,394.49/12,540.24
  6. Step 6: Final answer
    x = 9,458.14

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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.