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Finding the Fourth Proportional to 7,213.66, 9,954.75 and 4,070.86

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Solution

The fourth proportional to 7,213.66, 9,954.75 and 4,070.86 is: 5,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.66 : 9,954.75 = 4,070.86 : x
  2. Step 2: Convert to fraction form
    7,213.66/9,954.75 = 4,070.86/x
  3. Step 3: Cross multiply
    7,213.66x = 9,954.75 × 4,070.86
  4. Step 4: Simplify right side
    7,213.66x = 40,524,393.59
  5. Step 5: Solve for x
    x = 40,524,393.59/7,213.66
  6. Step 6: Final answer
    x = 5,617.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.