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Finding the Fourth Proportional to 12,555.82, 18,830.46 and 5,968.90

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Solution

The fourth proportional to 12,555.82, 18,830.46 and 5,968.90 is: 8,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.82 : 18,830.46 = 5,968.90 : x
  2. Step 2: Convert to fraction form
    12,555.82/18,830.46 = 5,968.90/x
  3. Step 3: Cross multiply
    12,555.82x = 18,830.46 × 5,968.90
  4. Step 4: Simplify right side
    12,555.82x = 112,397,132.69
  5. Step 5: Solve for x
    x = 112,397,132.69/12,555.82
  6. Step 6: Final answer
    x = 8,951.80

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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.