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Finding the Fourth Proportional to 8,998.63, 12,413.70 and 5,814.65

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Solution

The fourth proportional to 8,998.63, 12,413.70 and 5,814.65 is: 8,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.63 : 12,413.70 = 5,814.65 : x
  2. Step 2: Convert to fraction form
    8,998.63/12,413.70 = 5,814.65/x
  3. Step 3: Cross multiply
    8,998.63x = 12,413.70 × 5,814.65
  4. Step 4: Simplify right side
    8,998.63x = 72,181,356.28
  5. Step 5: Solve for x
    x = 72,181,356.28/8,998.63
  6. Step 6: Final answer
    x = 8,021.37

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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.