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Finding the Fourth Proportional to 8,771.85, 13,159.94 and 6,179.85

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Solution

The fourth proportional to 8,771.85, 13,159.94 and 6,179.85 is: 9,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.85 : 13,159.94 = 6,179.85 : x
  2. Step 2: Convert to fraction form
    8,771.85/13,159.94 = 6,179.85/x
  3. Step 3: Cross multiply
    8,771.85x = 13,159.94 × 6,179.85
  4. Step 4: Simplify right side
    8,771.85x = 81,326,424.31
  5. Step 5: Solve for x
    x = 81,326,424.31/8,771.85
  6. Step 6: Final answer
    x = 9,271.30

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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.