Home / 14,260.50-21,390.84-3,872.34

Finding the Fourth Proportional to 14,260.50, 21,390.84 and 3,872.34

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Solution

The fourth proportional to 14,260.50, 21,390.84 and 3,872.34 is: 5,808.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.50 : 21,390.84 = 3,872.34 : x
  2. Step 2: Convert to fraction form
    14,260.50/21,390.84 = 3,872.34/x
  3. Step 3: Cross multiply
    14,260.50x = 21,390.84 × 3,872.34
  4. Step 4: Simplify right side
    14,260.50x = 82,832,605.37
  5. Step 5: Solve for x
    x = 82,832,605.37/14,260.50
  6. Step 6: Final answer
    x = 5,808.53

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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.