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Finding the Fourth Proportional to 18,863.52, 28,292.24 and 6,383.31

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Solution

The fourth proportional to 18,863.52, 28,292.24 and 6,383.31 is: 9,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.52 : 28,292.24 = 6,383.31 : x
  2. Step 2: Convert to fraction form
    18,863.52/28,292.24 = 6,383.31/x
  3. Step 3: Cross multiply
    18,863.52x = 28,292.24 × 6,383.31
  4. Step 4: Simplify right side
    18,863.52x = 180,598,106.60
  5. Step 5: Solve for x
    x = 180,598,106.60/18,863.52
  6. Step 6: Final answer
    x = 9,573.93

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1.5x scale

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.