Home / 19,116.62-28,664.13-7,868.83

Finding the Fourth Proportional to 19,116.62, 28,664.13 and 7,868.83

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Solution

The fourth proportional to 19,116.62, 28,664.13 and 7,868.83 is: 11,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.62 : 28,664.13 = 7,868.83 : x
  2. Step 2: Convert to fraction form
    19,116.62/28,664.13 = 7,868.83/x
  3. Step 3: Cross multiply
    19,116.62x = 28,664.13 × 7,868.83
  4. Step 4: Simplify right side
    19,116.62x = 225,553,022.75
  5. Step 5: Solve for x
    x = 225,553,022.75/19,116.62
  6. Step 6: Final answer
    x = 11,798.79

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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.