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Finding the Fourth Proportional to 8,690.12, 13,027.84 and 5,908.98

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Solution

The fourth proportional to 8,690.12, 13,027.84 and 5,908.98 is: 8,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.12 : 13,027.84 = 5,908.98 : x
  2. Step 2: Convert to fraction form
    8,690.12/13,027.84 = 5,908.98/x
  3. Step 3: Cross multiply
    8,690.12x = 13,027.84 × 5,908.98
  4. Step 4: Simplify right side
    8,690.12x = 76,981,246.00
  5. Step 5: Solve for x
    x = 76,981,246.00/8,690.12
  6. Step 6: Final answer
    x = 8,858.48

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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.