Home / 8,261.68-11,403.12-5,116

Finding the Fourth Proportional to 8,261.68, 11,403.12 and 5,116

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Solution

The fourth proportional to 8,261.68, 11,403.12 and 5,116 is: 7,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.68 : 11,403.12 = 5,116 : x
  2. Step 2: Convert to fraction form
    8,261.68/11,403.12 = 5,116/x
  3. Step 3: Cross multiply
    8,261.68x = 11,403.12 × 5,116
  4. Step 4: Simplify right side
    8,261.68x = 58,338,361.92
  5. Step 5: Solve for x
    x = 58,338,361.92/8,261.68
  6. Step 6: Final answer
    x = 7,061.32

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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.