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Finding the Fourth Proportional to 8,006.40, 11,041.92 and 6,433.92

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Solution

The fourth proportional to 8,006.40, 11,041.92 and 6,433.92 is: 8,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,006.40 : 11,041.92 = 6,433.92 : x
  2. Step 2: Convert to fraction form
    8,006.40/11,041.92 = 6,433.92/x
  3. Step 3: Cross multiply
    8,006.40x = 11,041.92 × 6,433.92
  4. Step 4: Simplify right side
    8,006.40x = 71,042,829.93
  5. Step 5: Solve for x
    x = 71,042,829.93/8,006.40
  6. Step 6: Final answer
    x = 8,873.26

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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.