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Finding the Fourth Proportional to 9,959.70, 14,942.11 and 3,719.75

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Solution

The fourth proportional to 9,959.70, 14,942.11 and 3,719.75 is: 5,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.70 : 14,942.11 = 3,719.75 : x
  2. Step 2: Convert to fraction form
    9,959.70/14,942.11 = 3,719.75/x
  3. Step 3: Cross multiply
    9,959.70x = 14,942.11 × 3,719.75
  4. Step 4: Simplify right side
    9,959.70x = 55,580,920.69
  5. Step 5: Solve for x
    x = 55,580,920.69/9,959.70
  6. Step 6: Final answer
    x = 5,580.58

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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.