Home / 11,072.64-15,346.20-10,865.28

Finding the Fourth Proportional to 11,072.64, 15,346.20 and 10,865.28

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Solution

The fourth proportional to 11,072.64, 15,346.20 and 10,865.28 is: 15,058.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.64 : 15,346.20 = 10,865.28 : x
  2. Step 2: Convert to fraction form
    11,072.64/15,346.20 = 10,865.28/x
  3. Step 3: Cross multiply
    11,072.64x = 15,346.20 × 10,865.28
  4. Step 4: Simplify right side
    11,072.64x = 166,740,759.94
  5. Step 5: Solve for x
    x = 166,740,759.94/11,072.64
  6. Step 6: Final answer
    x = 15,058.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.