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Finding the Fourth Proportional to 8,065.64, 12,079.02 and 8,007.32

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Solution

The fourth proportional to 8,065.64, 12,079.02 and 8,007.32 is: 11,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.64 : 12,079.02 = 8,007.32 : x
  2. Step 2: Convert to fraction form
    8,065.64/12,079.02 = 8,007.32/x
  3. Step 3: Cross multiply
    8,065.64x = 12,079.02 × 8,007.32
  4. Step 4: Simplify right side
    8,065.64x = 96,720,578.43
  5. Step 5: Solve for x
    x = 96,720,578.43/8,065.64
  6. Step 6: Final answer
    x = 11,991.68

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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.