Home / 14,257.18-21,385.41-3,868.66

Finding the Fourth Proportional to 14,257.18, 21,385.41 and 3,868.66

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Solution

The fourth proportional to 14,257.18, 21,385.41 and 3,868.66 is: 5,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.18 : 21,385.41 = 3,868.66 : x
  2. Step 2: Convert to fraction form
    14,257.18/21,385.41 = 3,868.66/x
  3. Step 3: Cross multiply
    14,257.18x = 21,385.41 × 3,868.66
  4. Step 4: Simplify right side
    14,257.18x = 82,732,880.25
  5. Step 5: Solve for x
    x = 82,732,880.25/14,257.18
  6. Step 6: Final answer
    x = 5,802.89

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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.