Home / 10,519.05-15,777.36-3,122.74

Finding the Fourth Proportional to 10,519.05, 15,777.36 and 3,122.74

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Solution

The fourth proportional to 10,519.05, 15,777.36 and 3,122.74 is: 4,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.05 : 15,777.36 = 3,122.74 : x
  2. Step 2: Convert to fraction form
    10,519.05/15,777.36 = 3,122.74/x
  3. Step 3: Cross multiply
    10,519.05x = 15,777.36 × 3,122.74
  4. Step 4: Simplify right side
    10,519.05x = 49,268,553.72
  5. Step 5: Solve for x
    x = 49,268,553.72/10,519.05
  6. Step 6: Final answer
    x = 4,683.75

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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.