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Finding the Fourth Proportional to 12,253.69, 16,905.22 and 8,003.41

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Solution

The fourth proportional to 12,253.69, 16,905.22 and 8,003.41 is: 11,041.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.69 : 16,905.22 = 8,003.41 : x
  2. Step 2: Convert to fraction form
    12,253.69/16,905.22 = 8,003.41/x
  3. Step 3: Cross multiply
    12,253.69x = 16,905.22 × 8,003.41
  4. Step 4: Simplify right side
    12,253.69x = 135,299,406.80
  5. Step 5: Solve for x
    x = 135,299,406.80/12,253.69
  6. Step 6: Final answer
    x = 11,041.52

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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.