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Finding the Fourth Proportional to 8,309.80, 11,466.48 and 4,724.68

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Solution

The fourth proportional to 8,309.80, 11,466.48 and 4,724.68 is: 6,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.80 : 11,466.48 = 4,724.68 : x
  2. Step 2: Convert to fraction form
    8,309.80/11,466.48 = 4,724.68/x
  3. Step 3: Cross multiply
    8,309.80x = 11,466.48 × 4,724.68
  4. Step 4: Simplify right side
    8,309.80x = 54,175,448.73
  5. Step 5: Solve for x
    x = 54,175,448.73/8,309.80
  6. Step 6: Final answer
    x = 6,519.46

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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.