Home / 18,276.71-27,399.04-8,784.28

Finding the Fourth Proportional to 18,276.71, 27,399.04 and 8,784.28

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Solution

The fourth proportional to 18,276.71, 27,399.04 and 8,784.28 is: 13,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.71 : 27,399.04 = 8,784.28 : x
  2. Step 2: Convert to fraction form
    18,276.71/27,399.04 = 8,784.28/x
  3. Step 3: Cross multiply
    18,276.71x = 27,399.04 × 8,784.28
  4. Step 4: Simplify right side
    18,276.71x = 240,680,702.10
  5. Step 5: Solve for x
    x = 240,680,702.10/18,276.71
  6. Step 6: Final answer
    x = 13,168.71

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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.