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Finding the Fourth Proportional to 8,815.77, 13,192.07 and 7,633.88

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Solution

The fourth proportional to 8,815.77, 13,192.07 and 7,633.88 is: 11,423.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.77 : 13,192.07 = 7,633.88 : x
  2. Step 2: Convert to fraction form
    8,815.77/13,192.07 = 7,633.88/x
  3. Step 3: Cross multiply
    8,815.77x = 13,192.07 × 7,633.88
  4. Step 4: Simplify right side
    8,815.77x = 100,706,680.33
  5. Step 5: Solve for x
    x = 100,706,680.33/8,815.77
  6. Step 6: Final answer
    x = 11,423.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.