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Finding the Fourth Proportional to 8,991.77, 12,410.24 and 6,863.81

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Solution

The fourth proportional to 8,991.77, 12,410.24 and 6,863.81 is: 9,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.77 : 12,410.24 = 6,863.81 : x
  2. Step 2: Convert to fraction form
    8,991.77/12,410.24 = 6,863.81/x
  3. Step 3: Cross multiply
    8,991.77x = 12,410.24 × 6,863.81
  4. Step 4: Simplify right side
    8,991.77x = 85,181,433.04
  5. Step 5: Solve for x
    x = 85,181,433.04/8,991.77
  6. Step 6: Final answer
    x = 9,473.27

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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.