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Finding the Fourth Proportional to 8,559.08, 11,837.78 and 7,674.56

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Solution

The fourth proportional to 8,559.08, 11,837.78 and 7,674.56 is: 10,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.08 : 11,837.78 = 7,674.56 : x
  2. Step 2: Convert to fraction form
    8,559.08/11,837.78 = 7,674.56/x
  3. Step 3: Cross multiply
    8,559.08x = 11,837.78 × 7,674.56
  4. Step 4: Simplify right side
    8,559.08x = 90,849,752.88
  5. Step 5: Solve for x
    x = 90,849,752.88/8,559.08
  6. Step 6: Final answer
    x = 10,614.43

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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.