Home / 11,005.44-15,215.72-8,348.64

Finding the Fourth Proportional to 11,005.44, 15,215.72 and 8,348.64

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Solution

The fourth proportional to 11,005.44, 15,215.72 and 8,348.64 is: 11,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.44 : 15,215.72 = 8,348.64 : x
  2. Step 2: Convert to fraction form
    11,005.44/15,215.72 = 8,348.64/x
  3. Step 3: Cross multiply
    11,005.44x = 15,215.72 × 8,348.64
  4. Step 4: Simplify right side
    11,005.44x = 127,030,568.62
  5. Step 5: Solve for x
    x = 127,030,568.62/11,005.44
  6. Step 6: Final answer
    x = 11,542.53

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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.