Home / 10,640.76-15,959.70-2,850.12

Finding the Fourth Proportional to 10,640.76, 15,959.70 and 2,850.12

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Solution

The fourth proportional to 10,640.76, 15,959.70 and 2,850.12 is: 4,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.76 : 15,959.70 = 2,850.12 : x
  2. Step 2: Convert to fraction form
    10,640.76/15,959.70 = 2,850.12/x
  3. Step 3: Cross multiply
    10,640.76x = 15,959.70 × 2,850.12
  4. Step 4: Simplify right side
    10,640.76x = 45,487,060.16
  5. Step 5: Solve for x
    x = 45,487,060.16/10,640.76
  6. Step 6: Final answer
    x = 4,274.79

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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.