Home / 13,367.65-18,447.52-7,399.87

Finding the Fourth Proportional to 13,367.65, 18,447.52 and 7,399.87

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Solution

The fourth proportional to 13,367.65, 18,447.52 and 7,399.87 is: 10,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.65 : 18,447.52 = 7,399.87 : x
  2. Step 2: Convert to fraction form
    13,367.65/18,447.52 = 7,399.87/x
  3. Step 3: Cross multiply
    13,367.65x = 18,447.52 × 7,399.87
  4. Step 4: Simplify right side
    13,367.65x = 136,509,249.82
  5. Step 5: Solve for x
    x = 136,509,249.82/13,367.65
  6. Step 6: Final answer
    x = 10,211.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.