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Finding the Fourth Proportional to 6,659.06, 9,981.82 and 4,320.54

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Solution

The fourth proportional to 6,659.06, 9,981.82 and 4,320.54 is: 6,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.06 : 9,981.82 = 4,320.54 : x
  2. Step 2: Convert to fraction form
    6,659.06/9,981.82 = 4,320.54/x
  3. Step 3: Cross multiply
    6,659.06x = 9,981.82 × 4,320.54
  4. Step 4: Simplify right side
    6,659.06x = 43,126,852.58
  5. Step 5: Solve for x
    x = 43,126,852.58/6,659.06
  6. Step 6: Final answer
    x = 6,476.42

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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.