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Finding the Fourth Proportional to 18,643.60, 27,966.04 and 6,330

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Solution

The fourth proportional to 18,643.60, 27,966.04 and 6,330 is: 9,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.60 : 27,966.04 = 6,330 : x
  2. Step 2: Convert to fraction form
    18,643.60/27,966.04 = 6,330/x
  3. Step 3: Cross multiply
    18,643.60x = 27,966.04 × 6,330
  4. Step 4: Simplify right side
    18,643.60x = 177,025,033.20
  5. Step 5: Solve for x
    x = 177,025,033.20/18,643.60
  6. Step 6: Final answer
    x = 9,495.22

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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.