Home / 13,942.14-19,239.75-7,654.38

Finding the Fourth Proportional to 13,942.14, 19,239.75 and 7,654.38

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Solution

The fourth proportional to 13,942.14, 19,239.75 and 7,654.38 is: 10,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.14 : 19,239.75 = 7,654.38 : x
  2. Step 2: Convert to fraction form
    13,942.14/19,239.75 = 7,654.38/x
  3. Step 3: Cross multiply
    13,942.14x = 19,239.75 × 7,654.38
  4. Step 4: Simplify right side
    13,942.14x = 147,268,357.61
  5. Step 5: Solve for x
    x = 147,268,357.61/13,942.14
  6. Step 6: Final answer
    x = 10,562.82

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1.5x scale

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.