Home / 8,112.57-11,195.34-4,386.57

Finding the Fourth Proportional to 8,112.57, 11,195.34 and 4,386.57

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Solution

The fourth proportional to 8,112.57, 11,195.34 and 4,386.57 is: 6,053.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.57 : 11,195.34 = 4,386.57 : x
  2. Step 2: Convert to fraction form
    8,112.57/11,195.34 = 4,386.57/x
  3. Step 3: Cross multiply
    8,112.57x = 11,195.34 × 4,386.57
  4. Step 4: Simplify right side
    8,112.57x = 49,109,142.58
  5. Step 5: Solve for x
    x = 49,109,142.58/8,112.57
  6. Step 6: Final answer
    x = 6,053.46

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Half scale
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Double scale
Find fourth proportional to 8,113.57, 11,196.72 and 4,387.57
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.