Home / 10,155.72-15,234.39-3,230.22

Finding the Fourth Proportional to 10,155.72, 15,234.39 and 3,230.22

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Solution

The fourth proportional to 10,155.72, 15,234.39 and 3,230.22 is: 4,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.72 : 15,234.39 = 3,230.22 : x
  2. Step 2: Convert to fraction form
    10,155.72/15,234.39 = 3,230.22/x
  3. Step 3: Cross multiply
    10,155.72x = 15,234.39 × 3,230.22
  4. Step 4: Simplify right side
    10,155.72x = 49,210,431.27
  5. Step 5: Solve for x
    x = 49,210,431.27/10,155.72
  6. Step 6: Final answer
    x = 4,845.59

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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.