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Finding the Fourth Proportional to 12,576.75, 18,873.77 and 4,368.75

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Solution

The fourth proportional to 12,576.75, 18,873.77 and 4,368.75 is: 6,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.75 : 18,873.77 = 4,368.75 : x
  2. Step 2: Convert to fraction form
    12,576.75/18,873.77 = 4,368.75/x
  3. Step 3: Cross multiply
    12,576.75x = 18,873.77 × 4,368.75
  4. Step 4: Simplify right side
    12,576.75x = 82,454,760.84
  5. Step 5: Solve for x
    x = 82,454,760.84/12,576.75
  6. Step 6: Final answer
    x = 6,556.13

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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.