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Finding the Fourth Proportional to 17,571.60, 26,343.90 and 8,812.80

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Solution

The fourth proportional to 17,571.60, 26,343.90 and 8,812.80 is: 13,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,571.60 : 26,343.90 = 8,812.80 : x
  2. Step 2: Convert to fraction form
    17,571.60/26,343.90 = 8,812.80/x
  3. Step 3: Cross multiply
    17,571.60x = 26,343.90 × 8,812.80
  4. Step 4: Simplify right side
    17,571.60x = 232,163,521.92
  5. Step 5: Solve for x
    x = 232,163,521.92/17,571.60
  6. Step 6: Final answer
    x = 13,212.43

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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.