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Finding the Fourth Proportional to 8,702.43, 12,014.09 and 6,669.33

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Solution

The fourth proportional to 8,702.43, 12,014.09 and 6,669.33 is: 9,207.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.43 : 12,014.09 = 6,669.33 : x
  2. Step 2: Convert to fraction form
    8,702.43/12,014.09 = 6,669.33/x
  3. Step 3: Cross multiply
    8,702.43x = 12,014.09 × 6,669.33
  4. Step 4: Simplify right side
    8,702.43x = 80,125,930.86
  5. Step 5: Solve for x
    x = 80,125,930.86/8,702.43
  6. Step 6: Final answer
    x = 9,207.31

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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.