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Finding the Fourth Proportional to 7,773.95, 11,663.39 and 2,776.21

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Solution

The fourth proportional to 7,773.95, 11,663.39 and 2,776.21 is: 4,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.95 : 11,663.39 = 2,776.21 : x
  2. Step 2: Convert to fraction form
    7,773.95/11,663.39 = 2,776.21/x
  3. Step 3: Cross multiply
    7,773.95x = 11,663.39 × 2,776.21
  4. Step 4: Simplify right side
    7,773.95x = 32,379,982.12
  5. Step 5: Solve for x
    x = 32,379,982.12/7,773.95
  6. Step 6: Final answer
    x = 4,165.19

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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.