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Finding the Fourth Proportional to 27,151.80, 40,712.94 and 8,426.76

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Solution

The fourth proportional to 27,151.80, 40,712.94 and 8,426.76 is: 12,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,151.80 : 40,712.94 = 8,426.76 : x
  2. Step 2: Convert to fraction form
    27,151.80/40,712.94 = 8,426.76/x
  3. Step 3: Cross multiply
    27,151.80x = 40,712.94 × 8,426.76
  4. Step 4: Simplify right side
    27,151.80x = 343,078,174.27
  5. Step 5: Solve for x
    x = 343,078,174.27/27,151.80
  6. Step 6: Final answer
    x = 12,635.56

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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.