Home / 12,216.11-16,858.19-6,627.11

Finding the Fourth Proportional to 12,216.11, 16,858.19 and 6,627.11

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Solution

The fourth proportional to 12,216.11, 16,858.19 and 6,627.11 is: 9,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.11 : 16,858.19 = 6,627.11 : x
  2. Step 2: Convert to fraction form
    12,216.11/16,858.19 = 6,627.11/x
  3. Step 3: Cross multiply
    12,216.11x = 16,858.19 × 6,627.11
  4. Step 4: Simplify right side
    12,216.11x = 111,721,011.81
  5. Step 5: Solve for x
    x = 111,721,011.81/12,216.11
  6. Step 6: Final answer
    x = 9,145.39

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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.