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Finding the Fourth Proportional to 12,224.58, 16,859.52 and 8,240.46

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Solution

The fourth proportional to 12,224.58, 16,859.52 and 8,240.46 is: 11,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.58 : 16,859.52 = 8,240.46 : x
  2. Step 2: Convert to fraction form
    12,224.58/16,859.52 = 8,240.46/x
  3. Step 3: Cross multiply
    12,224.58x = 16,859.52 × 8,240.46
  4. Step 4: Simplify right side
    12,224.58x = 138,930,200.18
  5. Step 5: Solve for x
    x = 138,930,200.18/12,224.58
  6. Step 6: Final answer
    x = 11,364.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.