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Finding the Fourth Proportional to 8,590.62, 11,854.83 and 5,600.79

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Solution

The fourth proportional to 8,590.62, 11,854.83 and 5,600.79 is: 7,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.62 : 11,854.83 = 5,600.79 : x
  2. Step 2: Convert to fraction form
    8,590.62/11,854.83 = 5,600.79/x
  3. Step 3: Cross multiply
    8,590.62x = 11,854.83 × 5,600.79
  4. Step 4: Simplify right side
    8,590.62x = 66,396,413.32
  5. Step 5: Solve for x
    x = 66,396,413.32/8,590.62
  6. Step 6: Final answer
    x = 7,728.94

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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.