Home / 10,225.40-15,338.42-2,728.88

Finding the Fourth Proportional to 10,225.40, 15,338.42 and 2,728.88

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Solution

The fourth proportional to 10,225.40, 15,338.42 and 2,728.88 is: 4,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,225.40 : 15,338.42 = 2,728.88 : x
  2. Step 2: Convert to fraction form
    10,225.40/15,338.42 = 2,728.88/x
  3. Step 3: Cross multiply
    10,225.40x = 15,338.42 × 2,728.88
  4. Step 4: Simplify right side
    10,225.40x = 41,856,707.57
  5. Step 5: Solve for x
    x = 41,856,707.57/10,225.40
  6. Step 6: Final answer
    x = 4,093.41

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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.