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Finding the Fourth Proportional to 8,619.17, 11,891.81 and 4,841.81

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Solution

The fourth proportional to 8,619.17, 11,891.81 and 4,841.81 is: 6,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.17 : 11,891.81 = 4,841.81 : x
  2. Step 2: Convert to fraction form
    8,619.17/11,891.81 = 4,841.81/x
  3. Step 3: Cross multiply
    8,619.17x = 11,891.81 × 4,841.81
  4. Step 4: Simplify right side
    8,619.17x = 57,577,931.98
  5. Step 5: Solve for x
    x = 57,577,931.98/8,619.17
  6. Step 6: Final answer
    x = 6,680.22

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Why These Related Problems?

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