Home / 14,082-21,107.82-9,155.18

Finding the Fourth Proportional to 14,082, 21,107.82 and 9,155.18

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Solution

The fourth proportional to 14,082, 21,107.82 and 9,155.18 is: 13,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,082 : 21,107.82 = 9,155.18 : x
  2. Step 2: Convert to fraction form
    14,082/21,107.82 = 9,155.18/x
  3. Step 3: Cross multiply
    14,082x = 21,107.82 × 9,155.18
  4. Step 4: Simplify right side
    14,082x = 193,245,891.51
  5. Step 5: Solve for x
    x = 193,245,891.51/14,082
  6. Step 6: Final answer
    x = 13,722.90

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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.