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Finding the Fourth Proportional to 12,166.70, 18,252.77 and 4,375.50

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Solution

The fourth proportional to 12,166.70, 18,252.77 and 4,375.50 is: 6,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.70 : 18,252.77 = 4,375.50 : x
  2. Step 2: Convert to fraction form
    12,166.70/18,252.77 = 4,375.50/x
  3. Step 3: Cross multiply
    12,166.70x = 18,252.77 × 4,375.50
  4. Step 4: Simplify right side
    12,166.70x = 79,864,973.26
  5. Step 5: Solve for x
    x = 79,864,973.26/12,166.70
  6. Step 6: Final answer
    x = 6,564.23

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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.