Home / 13,082.58-19,584.99-7,872.66

Finding the Fourth Proportional to 13,082.58, 19,584.99 and 7,872.66

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Solution

The fourth proportional to 13,082.58, 19,584.99 and 7,872.66 is: 11,785.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.58 : 19,584.99 = 7,872.66 : x
  2. Step 2: Convert to fraction form
    13,082.58/19,584.99 = 7,872.66/x
  3. Step 3: Cross multiply
    13,082.58x = 19,584.99 × 7,872.66
  4. Step 4: Simplify right side
    13,082.58x = 154,185,967.37
  5. Step 5: Solve for x
    x = 154,185,967.37/13,082.58
  6. Step 6: Final answer
    x = 11,785.59

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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.