Home / 14,257.84-21,387.84-3,869.44

Finding the Fourth Proportional to 14,257.84, 21,387.84 and 3,869.44

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Solution

The fourth proportional to 14,257.84, 21,387.84 and 3,869.44 is: 5,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.84 : 21,387.84 = 3,869.44 : x
  2. Step 2: Convert to fraction form
    14,257.84/21,387.84 = 3,869.44/x
  3. Step 3: Cross multiply
    14,257.84x = 21,387.84 × 3,869.44
  4. Step 4: Simplify right side
    14,257.84x = 82,758,963.61
  5. Step 5: Solve for x
    x = 82,758,963.61/14,257.84
  6. Step 6: Final answer
    x = 5,804.45

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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.