Home / 13,289.11-19,912.38-10,165.33

Finding the Fourth Proportional to 13,289.11, 19,912.38 and 10,165.33

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Solution

The fourth proportional to 13,289.11, 19,912.38 and 10,165.33 is: 15,231.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.11 : 19,912.38 = 10,165.33 : x
  2. Step 2: Convert to fraction form
    13,289.11/19,912.38 = 10,165.33/x
  3. Step 3: Cross multiply
    13,289.11x = 19,912.38 × 10,165.33
  4. Step 4: Simplify right side
    13,289.11x = 202,415,913.79
  5. Step 5: Solve for x
    x = 202,415,913.79/13,289.11
  6. Step 6: Final answer
    x = 15,231.71

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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.