Home / 13,148.37-18,163.95-11,376.90

Finding the Fourth Proportional to 13,148.37, 18,163.95 and 11,376.90

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Solution

The fourth proportional to 13,148.37, 18,163.95 and 11,376.90 is: 15,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.37 : 18,163.95 = 11,376.90 : x
  2. Step 2: Convert to fraction form
    13,148.37/18,163.95 = 11,376.90/x
  3. Step 3: Cross multiply
    13,148.37x = 18,163.95 × 11,376.90
  4. Step 4: Simplify right side
    13,148.37x = 206,649,385.87
  5. Step 5: Solve for x
    x = 206,649,385.87/13,148.37
  6. Step 6: Final answer
    x = 15,716.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.