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Finding the Fourth Proportional to 8,318.69, 11,479.60 and 4,541.71

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Solution

The fourth proportional to 8,318.69, 11,479.60 and 4,541.71 is: 6,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.69 : 11,479.60 = 4,541.71 : x
  2. Step 2: Convert to fraction form
    8,318.69/11,479.60 = 4,541.71/x
  3. Step 3: Cross multiply
    8,318.69x = 11,479.60 × 4,541.71
  4. Step 4: Simplify right side
    8,318.69x = 52,136,956.72
  5. Step 5: Solve for x
    x = 52,136,956.72/8,318.69
  6. Step 6: Final answer
    x = 6,267.45

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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.