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Finding the Fourth Proportional to 8,118.76, 11,203.90 and 4,392.76

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Solution

The fourth proportional to 8,118.76, 11,203.90 and 4,392.76 is: 6,062.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.76 : 11,203.90 = 4,392.76 : x
  2. Step 2: Convert to fraction form
    8,118.76/11,203.90 = 4,392.76/x
  3. Step 3: Cross multiply
    8,118.76x = 11,203.90 × 4,392.76
  4. Step 4: Simplify right side
    8,118.76x = 49,216,043.76
  5. Step 5: Solve for x
    x = 49,216,043.76/8,118.76
  6. Step 6: Final answer
    x = 6,062.01

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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.