Home / 18,099.03-27,131.84-12,554.99

Finding the Fourth Proportional to 18,099.03, 27,131.84 and 12,554.99

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Solution

The fourth proportional to 18,099.03, 27,131.84 and 12,554.99 is: 18,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.03 : 27,131.84 = 12,554.99 : x
  2. Step 2: Convert to fraction form
    18,099.03/27,131.84 = 12,554.99/x
  3. Step 3: Cross multiply
    18,099.03x = 27,131.84 × 12,554.99
  4. Step 4: Simplify right side
    18,099.03x = 340,639,979.88
  5. Step 5: Solve for x
    x = 340,639,979.88/18,099.03
  6. Step 6: Final answer
    x = 18,820.90

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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.