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Finding the Fourth Proportional to 12,610.22, 18,873.72 and 6,979.22

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Solution

The fourth proportional to 12,610.22, 18,873.72 and 6,979.22 is: 10,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.22 : 18,873.72 = 6,979.22 : x
  2. Step 2: Convert to fraction form
    12,610.22/18,873.72 = 6,979.22/x
  3. Step 3: Cross multiply
    12,610.22x = 18,873.72 × 6,979.22
  4. Step 4: Simplify right side
    12,610.22x = 131,723,844.10
  5. Step 5: Solve for x
    x = 131,723,844.10/12,610.22
  6. Step 6: Final answer
    x = 10,445.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.