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Finding the Fourth Proportional to 18,053.31, 27,057.41 and 8,690.83

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Solution

The fourth proportional to 18,053.31, 27,057.41 and 8,690.83 is: 13,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,053.31 : 27,057.41 = 8,690.83 : x
  2. Step 2: Convert to fraction form
    18,053.31/27,057.41 = 8,690.83/x
  3. Step 3: Cross multiply
    18,053.31x = 27,057.41 × 8,690.83
  4. Step 4: Simplify right side
    18,053.31x = 235,151,272.04
  5. Step 5: Solve for x
    x = 235,151,272.04/18,053.31
  6. Step 6: Final answer
    x = 13,025.38

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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.