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Finding the Fourth Proportional to 12,089.60, 16,677.60 and 10,764.80

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Solution

The fourth proportional to 12,089.60, 16,677.60 and 10,764.80 is: 14,850.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.60 : 16,677.60 = 10,764.80 : x
  2. Step 2: Convert to fraction form
    12,089.60/16,677.60 = 10,764.80/x
  3. Step 3: Cross multiply
    12,089.60x = 16,677.60 × 10,764.80
  4. Step 4: Simplify right side
    12,089.60x = 179,531,028.48
  5. Step 5: Solve for x
    x = 179,531,028.48/12,089.60
  6. Step 6: Final answer
    x = 14,850.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.