Home / 10,815.78-16,224.82-4,576.42

Finding the Fourth Proportional to 10,815.78, 16,224.82 and 4,576.42

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Solution

The fourth proportional to 10,815.78, 16,224.82 and 4,576.42 is: 6,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.78 : 16,224.82 = 4,576.42 : x
  2. Step 2: Convert to fraction form
    10,815.78/16,224.82 = 4,576.42/x
  3. Step 3: Cross multiply
    10,815.78x = 16,224.82 × 4,576.42
  4. Step 4: Simplify right side
    10,815.78x = 74,251,590.74
  5. Step 5: Solve for x
    x = 74,251,590.74/10,815.78
  6. Step 6: Final answer
    x = 6,865.12

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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.