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Finding the Fourth Proportional to 8,187.96, 12,281.94 and 7,060.44

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Solution

The fourth proportional to 8,187.96, 12,281.94 and 7,060.44 is: 10,590.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.96 : 12,281.94 = 7,060.44 : x
  2. Step 2: Convert to fraction form
    8,187.96/12,281.94 = 7,060.44/x
  3. Step 3: Cross multiply
    8,187.96x = 12,281.94 × 7,060.44
  4. Step 4: Simplify right side
    8,187.96x = 86,715,900.45
  5. Step 5: Solve for x
    x = 86,715,900.45/8,187.96
  6. Step 6: Final answer
    x = 10,590.66

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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.