Home / 13,943.38-19,241.79-7,976.08

Finding the Fourth Proportional to 13,943.38, 19,241.79 and 7,976.08

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Solution

The fourth proportional to 13,943.38, 19,241.79 and 7,976.08 is: 11,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.38 : 19,241.79 = 7,976.08 : x
  2. Step 2: Convert to fraction form
    13,943.38/19,241.79 = 7,976.08/x
  3. Step 3: Cross multiply
    13,943.38x = 19,241.79 × 7,976.08
  4. Step 4: Simplify right side
    13,943.38x = 153,474,056.38
  5. Step 5: Solve for x
    x = 153,474,056.38/13,943.38
  6. Step 6: Final answer
    x = 11,006.95

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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.