Home / 10,208.20-15,309.26-3,969.18

Finding the Fourth Proportional to 10,208.20, 15,309.26 and 3,969.18

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Solution

The fourth proportional to 10,208.20, 15,309.26 and 3,969.18 is: 5,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.20 : 15,309.26 = 3,969.18 : x
  2. Step 2: Convert to fraction form
    10,208.20/15,309.26 = 3,969.18/x
  3. Step 3: Cross multiply
    10,208.20x = 15,309.26 × 3,969.18
  4. Step 4: Simplify right side
    10,208.20x = 60,765,208.61
  5. Step 5: Solve for x
    x = 60,765,208.61/10,208.20
  6. Step 6: Final answer
    x = 5,952.59

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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.