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Finding the Fourth Proportional to 12,256.56, 16,891.07 and 8,713.62

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Solution

The fourth proportional to 12,256.56, 16,891.07 and 8,713.62 is: 12,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.56 : 16,891.07 = 8,713.62 : x
  2. Step 2: Convert to fraction form
    12,256.56/16,891.07 = 8,713.62/x
  3. Step 3: Cross multiply
    12,256.56x = 16,891.07 × 8,713.62
  4. Step 4: Simplify right side
    12,256.56x = 147,182,321.81
  5. Step 5: Solve for x
    x = 147,182,321.81/12,256.56
  6. Step 6: Final answer
    x = 12,008.45

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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.