Home / 10,112.48-15,170.16-3,185.36

Finding the Fourth Proportional to 10,112.48, 15,170.16 and 3,185.36

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Solution

The fourth proportional to 10,112.48, 15,170.16 and 3,185.36 is: 4,778.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.48 : 15,170.16 = 3,185.36 : x
  2. Step 2: Convert to fraction form
    10,112.48/15,170.16 = 3,185.36/x
  3. Step 3: Cross multiply
    10,112.48x = 15,170.16 × 3,185.36
  4. Step 4: Simplify right side
    10,112.48x = 48,322,420.86
  5. Step 5: Solve for x
    x = 48,322,420.86/10,112.48
  6. Step 6: Final answer
    x = 4,778.49

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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.