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Finding the Fourth Proportional to 8,767.77, 12,074.04 and 7,617.43

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Solution

The fourth proportional to 8,767.77, 12,074.04 and 7,617.43 is: 10,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,767.77 : 12,074.04 = 7,617.43 : x
  2. Step 2: Convert to fraction form
    8,767.77/12,074.04 = 7,617.43/x
  3. Step 3: Cross multiply
    8,767.77x = 12,074.04 × 7,617.43
  4. Step 4: Simplify right side
    8,767.77x = 91,973,177.97
  5. Step 5: Solve for x
    x = 91,973,177.97/8,767.77
  6. Step 6: Final answer
    x = 10,489.92

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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.