Home / 10,085.96-15,135.78-3,512.12

Finding the Fourth Proportional to 10,085.96, 15,135.78 and 3,512.12

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Solution

The fourth proportional to 10,085.96, 15,135.78 and 3,512.12 is: 5,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.96 : 15,135.78 = 3,512.12 : x
  2. Step 2: Convert to fraction form
    10,085.96/15,135.78 = 3,512.12/x
  3. Step 3: Cross multiply
    10,085.96x = 15,135.78 × 3,512.12
  4. Step 4: Simplify right side
    10,085.96x = 53,158,675.65
  5. Step 5: Solve for x
    x = 53,158,675.65/10,085.96
  6. Step 6: Final answer
    x = 5,270.56

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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.