Home / 8,147.28-11,246.14-4,959.12

Finding the Fourth Proportional to 8,147.28, 11,246.14 and 4,959.12

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Solution

The fourth proportional to 8,147.28, 11,246.14 and 4,959.12 is: 6,845.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.28 : 11,246.14 = 4,959.12 : x
  2. Step 2: Convert to fraction form
    8,147.28/11,246.14 = 4,959.12/x
  3. Step 3: Cross multiply
    8,147.28x = 11,246.14 × 4,959.12
  4. Step 4: Simplify right side
    8,147.28x = 55,770,945.40
  5. Step 5: Solve for x
    x = 55,770,945.40/8,147.28
  6. Step 6: Final answer
    x = 6,845.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.