Home / 19,117.87-28,644.38-11,706.83

Finding the Fourth Proportional to 19,117.87, 28,644.38 and 11,706.83

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Solution

The fourth proportional to 19,117.87, 28,644.38 and 11,706.83 is: 17,540.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.87 : 28,644.38 = 11,706.83 : x
  2. Step 2: Convert to fraction form
    19,117.87/28,644.38 = 11,706.83/x
  3. Step 3: Cross multiply
    19,117.87x = 28,644.38 × 11,706.83
  4. Step 4: Simplify right side
    19,117.87x = 335,334,902.53
  5. Step 5: Solve for x
    x = 335,334,902.53/19,117.87
  6. Step 6: Final answer
    x = 17,540.39

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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.