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Finding the Fourth Proportional to 18,102.70, 27,166.20 and 10,699.30

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Solution

The fourth proportional to 18,102.70, 27,166.20 and 10,699.30 is: 16,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.70 : 27,166.20 = 10,699.30 : x
  2. Step 2: Convert to fraction form
    18,102.70/27,166.20 = 10,699.30/x
  3. Step 3: Cross multiply
    18,102.70x = 27,166.20 × 10,699.30
  4. Step 4: Simplify right side
    18,102.70x = 290,659,323.66
  5. Step 5: Solve for x
    x = 290,659,323.66/18,102.70
  6. Step 6: Final answer
    x = 16,056.13

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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.