Home / 18,138.42-27,212.00-7,602.66

Finding the Fourth Proportional to 18,138.42, 27,212.00 and 7,602.66

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Solution

The fourth proportional to 18,138.42, 27,212.00 and 7,602.66 is: 11,405.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.42 : 27,212.00 = 7,602.66 : x
  2. Step 2: Convert to fraction form
    18,138.42/27,212.00 = 7,602.66/x
  3. Step 3: Cross multiply
    18,138.42x = 27,212.00 × 7,602.66
  4. Step 4: Simplify right side
    18,138.42x = 206,883,545.91
  5. Step 5: Solve for x
    x = 206,883,545.91/18,138.42
  6. Step 6: Final answer
    x = 11,405.82

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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.