Home / 8,228.20-11,350.20-4,690.80

Finding the Fourth Proportional to 8,228.20, 11,350.20 and 4,690.80

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Solution

The fourth proportional to 8,228.20, 11,350.20 and 4,690.80 is: 6,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.20 : 11,350.20 = 4,690.80 : x
  2. Step 2: Convert to fraction form
    8,228.20/11,350.20 = 4,690.80/x
  3. Step 3: Cross multiply
    8,228.20x = 11,350.20 × 4,690.80
  4. Step 4: Simplify right side
    8,228.20x = 53,241,518.16
  5. Step 5: Solve for x
    x = 53,241,518.16/8,228.20
  6. Step 6: Final answer
    x = 6,470.62

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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.