Home / 8,416.68-11,616.84-5,620.56

Finding the Fourth Proportional to 8,416.68, 11,616.84 and 5,620.56

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Solution

The fourth proportional to 8,416.68, 11,616.84 and 5,620.56 is: 7,757.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.68 : 11,616.84 = 5,620.56 : x
  2. Step 2: Convert to fraction form
    8,416.68/11,616.84 = 5,620.56/x
  3. Step 3: Cross multiply
    8,416.68x = 11,616.84 × 5,620.56
  4. Step 4: Simplify right side
    8,416.68x = 65,293,146.23
  5. Step 5: Solve for x
    x = 65,293,146.23/8,416.68
  6. Step 6: Final answer
    x = 7,757.59

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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.