Home / 13,082.91-19,618.89-5,286.25

Finding the Fourth Proportional to 13,082.91, 19,618.89 and 5,286.25

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Solution

The fourth proportional to 13,082.91, 19,618.89 and 5,286.25 is: 7,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.91 : 19,618.89 = 5,286.25 : x
  2. Step 2: Convert to fraction form
    13,082.91/19,618.89 = 5,286.25/x
  3. Step 3: Cross multiply
    13,082.91x = 19,618.89 × 5,286.25
  4. Step 4: Simplify right side
    13,082.91x = 103,710,357.26
  5. Step 5: Solve for x
    x = 103,710,357.26/13,082.91
  6. Step 6: Final answer
    x = 7,927.16

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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.