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Finding the Fourth Proportional to 8,155.59, 11,254.71 and 4,618.81

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Solution

The fourth proportional to 8,155.59, 11,254.71 and 4,618.81 is: 6,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.59 : 11,254.71 = 4,618.81 : x
  2. Step 2: Convert to fraction form
    8,155.59/11,254.71 = 4,618.81/x
  3. Step 3: Cross multiply
    8,155.59x = 11,254.71 × 4,618.81
  4. Step 4: Simplify right side
    8,155.59x = 51,983,367.10
  5. Step 5: Solve for x
    x = 51,983,367.10/8,155.59
  6. Step 6: Final answer
    x = 6,373.96

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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.