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Finding the Fourth Proportional to 11,009.70, 15,201.71 and 6,766.62

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Solution

The fourth proportional to 11,009.70, 15,201.71 and 6,766.62 is: 9,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.70 : 15,201.71 = 6,766.62 : x
  2. Step 2: Convert to fraction form
    11,009.70/15,201.71 = 6,766.62/x
  3. Step 3: Cross multiply
    11,009.70x = 15,201.71 × 6,766.62
  4. Step 4: Simplify right side
    11,009.70x = 102,864,161.09
  5. Step 5: Solve for x
    x = 102,864,161.09/11,009.70
  6. Step 6: Final answer
    x = 9,343.05

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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.