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Finding the Fourth Proportional to 6,506.73, 8,979.28 and 3,712.23

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Solution

The fourth proportional to 6,506.73, 8,979.28 and 3,712.23 is: 5,122.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,506.73 : 8,979.28 = 3,712.23 : x
  2. Step 2: Convert to fraction form
    6,506.73/8,979.28 = 3,712.23/x
  3. Step 3: Cross multiply
    6,506.73x = 8,979.28 × 3,712.23
  4. Step 4: Simplify right side
    6,506.73x = 33,333,143.31
  5. Step 5: Solve for x
    x = 33,333,143.31/6,506.73
  6. Step 6: Final answer
    x = 5,122.87

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1.5x scale

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.