Home / 11,150.42-15,388.86-6,371.12

Finding the Fourth Proportional to 11,150.42, 15,388.86 and 6,371.12

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Solution

The fourth proportional to 11,150.42, 15,388.86 and 6,371.12 is: 8,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.42 : 15,388.86 = 6,371.12 : x
  2. Step 2: Convert to fraction form
    11,150.42/15,388.86 = 6,371.12/x
  3. Step 3: Cross multiply
    11,150.42x = 15,388.86 × 6,371.12
  4. Step 4: Simplify right side
    11,150.42x = 98,044,273.72
  5. Step 5: Solve for x
    x = 98,044,273.72/11,150.42
  6. Step 6: Final answer
    x = 8,792.88

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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.