Home / 18,000.95-27,015.87-8,141.09

Finding the Fourth Proportional to 18,000.95, 27,015.87 and 8,141.09

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Solution

The fourth proportional to 18,000.95, 27,015.87 and 8,141.09 is: 12,218.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.95 : 27,015.87 = 8,141.09 : x
  2. Step 2: Convert to fraction form
    18,000.95/27,015.87 = 8,141.09/x
  3. Step 3: Cross multiply
    18,000.95x = 27,015.87 × 8,141.09
  4. Step 4: Simplify right side
    18,000.95x = 219,938,588.39
  5. Step 5: Solve for x
    x = 219,938,588.39/18,000.95
  6. Step 6: Final answer
    x = 12,218.17

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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.