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Finding the Fourth Proportional to 8,565.74, 11,821.11 and 6,699.50

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Solution

The fourth proportional to 8,565.74, 11,821.11 and 6,699.50 is: 9,245.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.74 : 11,821.11 = 6,699.50 : x
  2. Step 2: Convert to fraction form
    8,565.74/11,821.11 = 6,699.50/x
  3. Step 3: Cross multiply
    8,565.74x = 11,821.11 × 6,699.50
  4. Step 4: Simplify right side
    8,565.74x = 79,195,526.45
  5. Step 5: Solve for x
    x = 79,195,526.45/8,565.74
  6. Step 6: Final answer
    x = 9,245.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.