Home / 10,148.78-15,217.10-4,218.52

Finding the Fourth Proportional to 10,148.78, 15,217.10 and 4,218.52

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Solution

The fourth proportional to 10,148.78, 15,217.10 and 4,218.52 is: 6,325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.78 : 15,217.10 = 4,218.52 : x
  2. Step 2: Convert to fraction form
    10,148.78/15,217.10 = 4,218.52/x
  3. Step 3: Cross multiply
    10,148.78x = 15,217.10 × 4,218.52
  4. Step 4: Simplify right side
    10,148.78x = 64,193,640.69
  5. Step 5: Solve for x
    x = 64,193,640.69/10,148.78
  6. Step 6: Final answer
    x = 6,325.26

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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.