Home / 8,179.14-11,290.47-5,196.63

Finding the Fourth Proportional to 8,179.14, 11,290.47 and 5,196.63

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Solution

The fourth proportional to 8,179.14, 11,290.47 and 5,196.63 is: 7,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.14 : 11,290.47 = 5,196.63 : x
  2. Step 2: Convert to fraction form
    8,179.14/11,290.47 = 5,196.63/x
  3. Step 3: Cross multiply
    8,179.14x = 11,290.47 × 5,196.63
  4. Step 4: Simplify right side
    8,179.14x = 58,672,395.12
  5. Step 5: Solve for x
    x = 58,672,395.12/8,179.14
  6. Step 6: Final answer
    x = 7,173.42

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Half scale
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Double scale
Find fourth proportional to 8,180.14, 11,291.85 and 5,197.63
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.