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Finding the Fourth Proportional to 11,395.84, 15,727.04 and 6,361.04

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Solution

The fourth proportional to 11,395.84, 15,727.04 and 6,361.04 is: 8,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.84 : 15,727.04 = 6,361.04 : x
  2. Step 2: Convert to fraction form
    11,395.84/15,727.04 = 6,361.04/x
  3. Step 3: Cross multiply
    11,395.84x = 15,727.04 × 6,361.04
  4. Step 4: Simplify right side
    11,395.84x = 100,040,385.74
  5. Step 5: Solve for x
    x = 100,040,385.74/11,395.84
  6. Step 6: Final answer
    x = 8,778.68

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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.