Home / 10,209.92-15,313.92-4,371.20

Finding the Fourth Proportional to 10,209.92, 15,313.92 and 4,371.20

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Solution

The fourth proportional to 10,209.92, 15,313.92 and 4,371.20 is: 6,556.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.92 : 15,313.92 = 4,371.20 : x
  2. Step 2: Convert to fraction form
    10,209.92/15,313.92 = 4,371.20/x
  3. Step 3: Cross multiply
    10,209.92x = 15,313.92 × 4,371.20
  4. Step 4: Simplify right side
    10,209.92x = 66,940,207.10
  5. Step 5: Solve for x
    x = 66,940,207.10/10,209.92
  6. Step 6: Final answer
    x = 6,556.39

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1.5x scale

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.