Home / 13,942.34-19,239.75-7,974.66

Finding the Fourth Proportional to 13,942.34, 19,239.75 and 7,974.66

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Solution

The fourth proportional to 13,942.34, 19,239.75 and 7,974.66 is: 11,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.34 : 19,239.75 = 7,974.66 : x
  2. Step 2: Convert to fraction form
    13,942.34/19,239.75 = 7,974.66/x
  3. Step 3: Cross multiply
    13,942.34x = 19,239.75 × 7,974.66
  4. Step 4: Simplify right side
    13,942.34x = 153,430,464.74
  5. Step 5: Solve for x
    x = 153,430,464.74/13,942.34
  6. Step 6: Final answer
    x = 11,004.65

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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.