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Finding the Fourth Proportional to 8,614.88, 11,889.44 and 5,471.07

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Solution

The fourth proportional to 8,614.88, 11,889.44 and 5,471.07 is: 7,550.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.88 : 11,889.44 = 5,471.07 : x
  2. Step 2: Convert to fraction form
    8,614.88/11,889.44 = 5,471.07/x
  3. Step 3: Cross multiply
    8,614.88x = 11,889.44 × 5,471.07
  4. Step 4: Simplify right side
    8,614.88x = 65,047,958.50
  5. Step 5: Solve for x
    x = 65,047,958.50/8,614.88
  6. Step 6: Final answer
    x = 7,550.65

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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.