Home / 11,171.22-16,731.32-5,331.93

Finding the Fourth Proportional to 11,171.22, 16,731.32 and 5,331.93

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Solution

The fourth proportional to 11,171.22, 16,731.32 and 5,331.93 is: 7,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.22 : 16,731.32 = 5,331.93 : x
  2. Step 2: Convert to fraction form
    11,171.22/16,731.32 = 5,331.93/x
  3. Step 3: Cross multiply
    11,171.22x = 16,731.32 × 5,331.93
  4. Step 4: Simplify right side
    11,171.22x = 89,210,231.76
  5. Step 5: Solve for x
    x = 89,210,231.76/11,171.22
  6. Step 6: Final answer
    x = 7,985.72

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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.