Home / 12,344.38-18,556.67-9,905.88

Finding the Fourth Proportional to 12,344.38, 18,556.67 and 9,905.88

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Solution

The fourth proportional to 12,344.38, 18,556.67 and 9,905.88 is: 14,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.38 : 18,556.67 = 9,905.88 : x
  2. Step 2: Convert to fraction form
    12,344.38/18,556.67 = 9,905.88/x
  3. Step 3: Cross multiply
    12,344.38x = 18,556.67 × 9,905.88
  4. Step 4: Simplify right side
    12,344.38x = 183,820,146.22
  5. Step 5: Solve for x
    x = 183,820,146.22/12,344.38
  6. Step 6: Final answer
    x = 14,891.00

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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.