Home / 8,112.72-11,195.09-4,575.72

Finding the Fourth Proportional to 8,112.72, 11,195.09 and 4,575.72

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Solution

The fourth proportional to 8,112.72, 11,195.09 and 4,575.72 is: 6,314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.72 : 11,195.09 = 4,575.72 : x
  2. Step 2: Convert to fraction form
    8,112.72/11,195.09 = 4,575.72/x
  3. Step 3: Cross multiply
    8,112.72x = 11,195.09 × 4,575.72
  4. Step 4: Simplify right side
    8,112.72x = 51,225,597.21
  5. Step 5: Solve for x
    x = 51,225,597.21/8,112.72
  6. Step 6: Final answer
    x = 6,314.23

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Half scale
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Double scale
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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.