Home / 8,198.16-11,313.48-4,472.40

Finding the Fourth Proportional to 8,198.16, 11,313.48 and 4,472.40

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Solution

The fourth proportional to 8,198.16, 11,313.48 and 4,472.40 is: 6,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.16 : 11,313.48 = 4,472.40 : x
  2. Step 2: Convert to fraction form
    8,198.16/11,313.48 = 4,472.40/x
  3. Step 3: Cross multiply
    8,198.16x = 11,313.48 × 4,472.40
  4. Step 4: Simplify right side
    8,198.16x = 50,598,407.95
  5. Step 5: Solve for x
    x = 50,598,407.95/8,198.16
  6. Step 6: Final answer
    x = 6,171.92

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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.