Home / 8,228.82-12,347.67-5,456.79

Finding the Fourth Proportional to 8,228.82, 12,347.67 and 5,456.79

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Solution

The fourth proportional to 8,228.82, 12,347.67 and 5,456.79 is: 8,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.82 : 12,347.67 = 5,456.79 : x
  2. Step 2: Convert to fraction form
    8,228.82/12,347.67 = 5,456.79/x
  3. Step 3: Cross multiply
    8,228.82x = 12,347.67 × 5,456.79
  4. Step 4: Simplify right side
    8,228.82x = 67,378,651.33
  5. Step 5: Solve for x
    x = 67,378,651.33/8,228.82
  6. Step 6: Final answer
    x = 8,188.14

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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.