Home / 12,099.22-18,138.75-10,535.38

Finding the Fourth Proportional to 12,099.22, 18,138.75 and 10,535.38

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Solution

The fourth proportional to 12,099.22, 18,138.75 and 10,535.38 is: 15,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.22 : 18,138.75 = 10,535.38 : x
  2. Step 2: Convert to fraction form
    12,099.22/18,138.75 = 10,535.38/x
  3. Step 3: Cross multiply
    12,099.22x = 18,138.75 × 10,535.38
  4. Step 4: Simplify right side
    12,099.22x = 191,098,623.98
  5. Step 5: Solve for x
    x = 191,098,623.98/12,099.22
  6. Step 6: Final answer
    x = 15,794.29

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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.