Home / 15,140.44-20,892.36-11,163.70

Finding the Fourth Proportional to 15,140.44, 20,892.36 and 11,163.70

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Solution

The fourth proportional to 15,140.44, 20,892.36 and 11,163.70 is: 15,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.44 : 20,892.36 = 11,163.70 : x
  2. Step 2: Convert to fraction form
    15,140.44/20,892.36 = 11,163.70/x
  3. Step 3: Cross multiply
    15,140.44x = 20,892.36 × 11,163.70
  4. Step 4: Simplify right side
    15,140.44x = 233,236,039.33
  5. Step 5: Solve for x
    x = 233,236,039.33/15,140.44
  6. Step 6: Final answer
    x = 15,404.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.