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Finding the Fourth Proportional to 12,160.35, 16,761.60 and 8,803.35

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Solution

The fourth proportional to 12,160.35, 16,761.60 and 8,803.35 is: 12,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.35 : 16,761.60 = 8,803.35 : x
  2. Step 2: Convert to fraction form
    12,160.35/16,761.60 = 8,803.35/x
  3. Step 3: Cross multiply
    12,160.35x = 16,761.60 × 8,803.35
  4. Step 4: Simplify right side
    12,160.35x = 147,558,231.36
  5. Step 5: Solve for x
    x = 147,558,231.36/12,160.35
  6. Step 6: Final answer
    x = 12,134.37

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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.