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Finding the Fourth Proportional to 8,908.32, 13,364.64 and 2,668.32

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Solution

The fourth proportional to 8,908.32, 13,364.64 and 2,668.32 is: 4,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.32 : 13,364.64 = 2,668.32 : x
  2. Step 2: Convert to fraction form
    8,908.32/13,364.64 = 2,668.32/x
  3. Step 3: Cross multiply
    8,908.32x = 13,364.64 × 2,668.32
  4. Step 4: Simplify right side
    8,908.32x = 35,661,136.20
  5. Step 5: Solve for x
    x = 35,661,136.20/8,908.32
  6. Step 6: Final answer
    x = 4,003.13

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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.