Home / 11,191.44-15,440.58-7,205.52

Finding the Fourth Proportional to 11,191.44, 15,440.58 and 7,205.52

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Solution

The fourth proportional to 11,191.44, 15,440.58 and 7,205.52 is: 9,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.44 : 15,440.58 = 7,205.52 : x
  2. Step 2: Convert to fraction form
    11,191.44/15,440.58 = 7,205.52/x
  3. Step 3: Cross multiply
    11,191.44x = 15,440.58 × 7,205.52
  4. Step 4: Simplify right side
    11,191.44x = 111,257,408.00
  5. Step 5: Solve for x
    x = 111,257,408.00/11,191.44
  6. Step 6: Final answer
    x = 9,941.30

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Half scale
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Double scale
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Similar ratio
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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.