Home / 15,171.32-20,930.64-11,201.96

Finding the Fourth Proportional to 15,171.32, 20,930.64 and 11,201.96

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Solution

The fourth proportional to 15,171.32, 20,930.64 and 11,201.96 is: 15,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.32 : 20,930.64 = 11,201.96 : x
  2. Step 2: Convert to fraction form
    15,171.32/20,930.64 = 11,201.96/x
  3. Step 3: Cross multiply
    15,171.32x = 20,930.64 × 11,201.96
  4. Step 4: Simplify right side
    15,171.32x = 234,464,192.05
  5. Step 5: Solve for x
    x = 234,464,192.05/15,171.32
  6. Step 6: Final answer
    x = 15,454.44

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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.