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Finding the Fourth Proportional to 9,093.80, 13,643.90 and 8,773.80

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Solution

The fourth proportional to 9,093.80, 13,643.90 and 8,773.80 is: 13,163.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,093.80 : 13,643.90 = 8,773.80 : x
  2. Step 2: Convert to fraction form
    9,093.80/13,643.90 = 8,773.80/x
  3. Step 3: Cross multiply
    9,093.80x = 13,643.90 × 8,773.80
  4. Step 4: Simplify right side
    9,093.80x = 119,708,849.82
  5. Step 5: Solve for x
    x = 119,708,849.82/9,093.80
  6. Step 6: Final answer
    x = 13,163.79

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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.