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Finding the Fourth Proportional to 6,614.25, 9,917.62 and 5,112.74

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Solution

The fourth proportional to 6,614.25, 9,917.62 and 5,112.74 is: 7,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,614.25 : 9,917.62 = 5,112.74 : x
  2. Step 2: Convert to fraction form
    6,614.25/9,917.62 = 5,112.74/x
  3. Step 3: Cross multiply
    6,614.25x = 9,917.62 × 5,112.74
  4. Step 4: Simplify right side
    6,614.25x = 50,706,212.48
  5. Step 5: Solve for x
    x = 50,706,212.48/6,614.25
  6. Step 6: Final answer
    x = 7,666.21

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1.5x scale

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.