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Finding the Fourth Proportional to 8,803.78, 13,206.81 and 3,608.42

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Solution

The fourth proportional to 8,803.78, 13,206.81 and 3,608.42 is: 5,413.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.78 : 13,206.81 = 3,608.42 : x
  2. Step 2: Convert to fraction form
    8,803.78/13,206.81 = 3,608.42/x
  3. Step 3: Cross multiply
    8,803.78x = 13,206.81 × 3,608.42
  4. Step 4: Simplify right side
    8,803.78x = 47,655,717.34
  5. Step 5: Solve for x
    x = 47,655,717.34/8,803.78
  6. Step 6: Final answer
    x = 5,413.10

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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.