Home / 18,963.62-28,436.06-5,812.82

Finding the Fourth Proportional to 18,963.62, 28,436.06 and 5,812.82

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Solution

The fourth proportional to 18,963.62, 28,436.06 and 5,812.82 is: 8,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.62 : 28,436.06 = 5,812.82 : x
  2. Step 2: Convert to fraction form
    18,963.62/28,436.06 = 5,812.82/x
  3. Step 3: Cross multiply
    18,963.62x = 28,436.06 × 5,812.82
  4. Step 4: Simplify right side
    18,963.62x = 165,293,698.29
  5. Step 5: Solve for x
    x = 165,293,698.29/18,963.62
  6. Step 6: Final answer
    x = 8,716.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.