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Finding the Fourth Proportional to 8,771.59, 13,125.95 and 8,185.05

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Solution

The fourth proportional to 8,771.59, 13,125.95 and 8,185.05 is: 12,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.59 : 13,125.95 = 8,185.05 : x
  2. Step 2: Convert to fraction form
    8,771.59/13,125.95 = 8,185.05/x
  3. Step 3: Cross multiply
    8,771.59x = 13,125.95 × 8,185.05
  4. Step 4: Simplify right side
    8,771.59x = 107,436,546.82
  5. Step 5: Solve for x
    x = 107,436,546.82/8,771.59
  6. Step 6: Final answer
    x = 12,248.24

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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.