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Finding the Fourth Proportional to 7,159.59, 10,743.03 and 6,618.33

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Solution

The fourth proportional to 7,159.59, 10,743.03 and 6,618.33 is: 9,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.59 : 10,743.03 = 6,618.33 : x
  2. Step 2: Convert to fraction form
    7,159.59/10,743.03 = 6,618.33/x
  3. Step 3: Cross multiply
    7,159.59x = 10,743.03 × 6,618.33
  4. Step 4: Simplify right side
    7,159.59x = 71,100,917.74
  5. Step 5: Solve for x
    x = 71,100,917.74/7,159.59
  6. Step 6: Final answer
    x = 9,930.86

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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.