Home / 11,100.39-15,321.60-6,627.17

Finding the Fourth Proportional to 11,100.39, 15,321.60 and 6,627.17

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Solution

The fourth proportional to 11,100.39, 15,321.60 and 6,627.17 is: 9,147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.39 : 15,321.60 = 6,627.17 : x
  2. Step 2: Convert to fraction form
    11,100.39/15,321.60 = 6,627.17/x
  3. Step 3: Cross multiply
    11,100.39x = 15,321.60 × 6,627.17
  4. Step 4: Simplify right side
    11,100.39x = 101,538,771.26
  5. Step 5: Solve for x
    x = 101,538,771.26/11,100.39
  6. Step 6: Final answer
    x = 9,147.32

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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.