Home / 18,051.56-27,080.73-8,191.53

Finding the Fourth Proportional to 18,051.56, 27,080.73 and 8,191.53

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Solution

The fourth proportional to 18,051.56, 27,080.73 and 8,191.53 is: 12,288.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,051.56 : 27,080.73 = 8,191.53 : x
  2. Step 2: Convert to fraction form
    18,051.56/27,080.73 = 8,191.53/x
  3. Step 3: Cross multiply
    18,051.56x = 27,080.73 × 8,191.53
  4. Step 4: Simplify right side
    18,051.56x = 221,832,612.22
  5. Step 5: Solve for x
    x = 221,832,612.22/18,051.56
  6. Step 6: Final answer
    x = 12,288.83

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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.