Home / 10,185.36-15,268.32-3,255.12

Finding the Fourth Proportional to 10,185.36, 15,268.32 and 3,255.12

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Solution

The fourth proportional to 10,185.36, 15,268.32 and 3,255.12 is: 4,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.36 : 15,268.32 = 3,255.12 : x
  2. Step 2: Convert to fraction form
    10,185.36/15,268.32 = 3,255.12/x
  3. Step 3: Cross multiply
    10,185.36x = 15,268.32 × 3,255.12
  4. Step 4: Simplify right side
    10,185.36x = 49,700,213.80
  5. Step 5: Solve for x
    x = 49,700,213.80/10,185.36
  6. Step 6: Final answer
    x = 4,879.57

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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.