Home / 10,391.70-15,587.74-3,371.68

Finding the Fourth Proportional to 10,391.70, 15,587.74 and 3,371.68

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Solution

The fourth proportional to 10,391.70, 15,587.74 and 3,371.68 is: 5,057.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.70 : 15,587.74 = 3,371.68 : x
  2. Step 2: Convert to fraction form
    10,391.70/15,587.74 = 3,371.68/x
  3. Step 3: Cross multiply
    10,391.70x = 15,587.74 × 3,371.68
  4. Step 4: Simplify right side
    10,391.70x = 52,556,871.20
  5. Step 5: Solve for x
    x = 52,556,871.20/10,391.70
  6. Step 6: Final answer
    x = 5,057.58

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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.