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Finding the Fourth Proportional to 8,717.71, 13,069.19 and 3,783.62

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Solution

The fourth proportional to 8,717.71, 13,069.19 and 3,783.62 is: 5,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.71 : 13,069.19 = 3,783.62 : x
  2. Step 2: Convert to fraction form
    8,717.71/13,069.19 = 3,783.62/x
  3. Step 3: Cross multiply
    8,717.71x = 13,069.19 × 3,783.62
  4. Step 4: Simplify right side
    8,717.71x = 49,448,783.32
  5. Step 5: Solve for x
    x = 49,448,783.32/8,717.71
  6. Step 6: Final answer
    x = 5,672.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.