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Finding the Fourth Proportional to 8,079.81, 12,113.16 and 3,634.22

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Solution

The fourth proportional to 8,079.81, 12,113.16 and 3,634.22 is: 5,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.81 : 12,113.16 = 3,634.22 : x
  2. Step 2: Convert to fraction form
    8,079.81/12,113.16 = 3,634.22/x
  3. Step 3: Cross multiply
    8,079.81x = 12,113.16 × 3,634.22
  4. Step 4: Simplify right side
    8,079.81x = 44,021,809.60
  5. Step 5: Solve for x
    x = 44,021,809.60/8,079.81
  6. Step 6: Final answer
    x = 5,448.38

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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.