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Finding the Fourth Proportional to 8,000.69, 12,011.45 and 5,379.93

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Solution

The fourth proportional to 8,000.69, 12,011.45 and 5,379.93 is: 8,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.69 : 12,011.45 = 5,379.93 : x
  2. Step 2: Convert to fraction form
    8,000.69/12,011.45 = 5,379.93/x
  3. Step 3: Cross multiply
    8,000.69x = 12,011.45 × 5,379.93
  4. Step 4: Simplify right side
    8,000.69x = 64,620,733.30
  5. Step 5: Solve for x
    x = 64,620,733.30/8,000.69
  6. Step 6: Final answer
    x = 8,076.90

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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.