Home / 11,681.84-17,522.94-3,890.66

Finding the Fourth Proportional to 11,681.84, 17,522.94 and 3,890.66

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Solution

The fourth proportional to 11,681.84, 17,522.94 and 3,890.66 is: 5,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.84 : 17,522.94 = 3,890.66 : x
  2. Step 2: Convert to fraction form
    11,681.84/17,522.94 = 3,890.66/x
  3. Step 3: Cross multiply
    11,681.84x = 17,522.94 × 3,890.66
  4. Step 4: Simplify right side
    11,681.84x = 68,175,801.74
  5. Step 5: Solve for x
    x = 68,175,801.74/11,681.84
  6. Step 6: Final answer
    x = 5,836.05

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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.