Home / 13,876.20-19,146.92-7,907.96

Finding the Fourth Proportional to 13,876.20, 19,146.92 and 7,907.96

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Solution

The fourth proportional to 13,876.20, 19,146.92 and 7,907.96 is: 10,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.20 : 19,146.92 = 7,907.96 : x
  2. Step 2: Convert to fraction form
    13,876.20/19,146.92 = 7,907.96/x
  3. Step 3: Cross multiply
    13,876.20x = 19,146.92 × 7,907.96
  4. Step 4: Simplify right side
    13,876.20x = 151,413,077.48
  5. Step 5: Solve for x
    x = 151,413,077.48/13,876.20
  6. Step 6: Final answer
    x = 10,911.71

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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.