Home / 10,227.15-15,340.68-2,831.54

Finding the Fourth Proportional to 10,227.15, 15,340.68 and 2,831.54

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Solution

The fourth proportional to 10,227.15, 15,340.68 and 2,831.54 is: 4,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,227.15 : 15,340.68 = 2,831.54 : x
  2. Step 2: Convert to fraction form
    10,227.15/15,340.68 = 2,831.54/x
  3. Step 3: Cross multiply
    10,227.15x = 15,340.68 × 2,831.54
  4. Step 4: Simplify right side
    10,227.15x = 43,437,672.34
  5. Step 5: Solve for x
    x = 43,437,672.34/10,227.15
  6. Step 6: Final answer
    x = 4,247.29

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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.