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Finding the Fourth Proportional to 6,999.44, 9,659.07 and 3,812.77

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Solution

The fourth proportional to 6,999.44, 9,659.07 and 3,812.77 is: 5,261.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.44 : 9,659.07 = 3,812.77 : x
  2. Step 2: Convert to fraction form
    6,999.44/9,659.07 = 3,812.77/x
  3. Step 3: Cross multiply
    6,999.44x = 9,659.07 × 3,812.77
  4. Step 4: Simplify right side
    6,999.44x = 36,827,764.03
  5. Step 5: Solve for x
    x = 36,827,764.03/6,999.44
  6. Step 6: Final answer
    x = 5,261.53

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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.