Home / 13,116.24-19,674.54-7,309.76

Finding the Fourth Proportional to 13,116.24, 19,674.54 and 7,309.76

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Solution

The fourth proportional to 13,116.24, 19,674.54 and 7,309.76 is: 10,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.24 : 19,674.54 = 7,309.76 : x
  2. Step 2: Convert to fraction form
    13,116.24/19,674.54 = 7,309.76/x
  3. Step 3: Cross multiply
    13,116.24x = 19,674.54 × 7,309.76
  4. Step 4: Simplify right side
    13,116.24x = 143,816,067.14
  5. Step 5: Solve for x
    x = 143,816,067.14/13,116.24
  6. Step 6: Final answer
    x = 10,964.73

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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.