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Finding the Fourth Proportional to 7,771.08, 11,637.99 and 6,837.15

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Solution

The fourth proportional to 7,771.08, 11,637.99 and 6,837.15 is: 10,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.08 : 11,637.99 = 6,837.15 : x
  2. Step 2: Convert to fraction form
    7,771.08/11,637.99 = 6,837.15/x
  3. Step 3: Cross multiply
    7,771.08x = 11,637.99 × 6,837.15
  4. Step 4: Simplify right side
    7,771.08x = 79,570,683.33
  5. Step 5: Solve for x
    x = 79,570,683.33/7,771.08
  6. Step 6: Final answer
    x = 10,239.33

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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.