Home / 11,163.41-15,405.96-6,686.27

Finding the Fourth Proportional to 11,163.41, 15,405.96 and 6,686.27

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Solution

The fourth proportional to 11,163.41, 15,405.96 and 6,686.27 is: 9,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.41 : 15,405.96 = 6,686.27 : x
  2. Step 2: Convert to fraction form
    11,163.41/15,405.96 = 6,686.27/x
  3. Step 3: Cross multiply
    11,163.41x = 15,405.96 × 6,686.27
  4. Step 4: Simplify right side
    11,163.41x = 103,008,331.14
  5. Step 5: Solve for x
    x = 103,008,331.14/11,163.41
  6. Step 6: Final answer
    x = 9,227.32

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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.