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Finding the Fourth Proportional to 12,062.79, 16,652.66 and 8,287.38

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Solution

The fourth proportional to 12,062.79, 16,652.66 and 8,287.38 is: 11,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.79 : 16,652.66 = 8,287.38 : x
  2. Step 2: Convert to fraction form
    12,062.79/16,652.66 = 8,287.38/x
  3. Step 3: Cross multiply
    12,062.79x = 16,652.66 × 8,287.38
  4. Step 4: Simplify right side
    12,062.79x = 138,006,879.99
  5. Step 5: Solve for x
    x = 138,006,879.99/12,062.79
  6. Step 6: Final answer
    x = 11,440.71

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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.