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Finding the Fourth Proportional to 8,908.57, 13,365.02 and 2,668.57

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Solution

The fourth proportional to 8,908.57, 13,365.02 and 2,668.57 is: 4,003.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.57 : 13,365.02 = 2,668.57 : x
  2. Step 2: Convert to fraction form
    8,908.57/13,365.02 = 2,668.57/x
  3. Step 3: Cross multiply
    8,908.57x = 13,365.02 × 2,668.57
  4. Step 4: Simplify right side
    8,908.57x = 35,665,478.08
  5. Step 5: Solve for x
    x = 35,665,478.08/8,908.57
  6. Step 6: Final answer
    x = 4,003.50

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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.