Home / 12,112.66-18,163.07-4,995.57

Finding the Fourth Proportional to 12,112.66, 18,163.07 and 4,995.57

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Solution

The fourth proportional to 12,112.66, 18,163.07 and 4,995.57 is: 7,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.66 : 18,163.07 = 4,995.57 : x
  2. Step 2: Convert to fraction form
    12,112.66/18,163.07 = 4,995.57/x
  3. Step 3: Cross multiply
    12,112.66x = 18,163.07 × 4,995.57
  4. Step 4: Simplify right side
    12,112.66x = 90,734,887.60
  5. Step 5: Solve for x
    x = 90,734,887.60/12,112.66
  6. Step 6: Final answer
    x = 7,490.91

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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.