Home / 13,942.65-19,240.89-7,655.43

Finding the Fourth Proportional to 13,942.65, 19,240.89 and 7,655.43

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Solution

The fourth proportional to 13,942.65, 19,240.89 and 7,655.43 is: 10,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.65 : 19,240.89 = 7,655.43 : x
  2. Step 2: Convert to fraction form
    13,942.65/19,240.89 = 7,655.43/x
  3. Step 3: Cross multiply
    13,942.65x = 19,240.89 × 7,655.43
  4. Step 4: Simplify right side
    13,942.65x = 147,297,286.53
  5. Step 5: Solve for x
    x = 147,297,286.53/13,942.65
  6. Step 6: Final answer
    x = 10,564.51

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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.