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Finding the Fourth Proportional to 6,889.73, 10,287.79 and 6,702.89

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Solution

The fourth proportional to 6,889.73, 10,287.79 and 6,702.89 is: 10,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.73 : 10,287.79 = 6,702.89 : x
  2. Step 2: Convert to fraction form
    6,889.73/10,287.79 = 6,702.89/x
  3. Step 3: Cross multiply
    6,889.73x = 10,287.79 × 6,702.89
  4. Step 4: Simplify right side
    6,889.73x = 68,957,894.22
  5. Step 5: Solve for x
    x = 68,957,894.22/6,889.73
  6. Step 6: Final answer
    x = 10,008.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.