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Finding the Fourth Proportional to 6,622.92, 9,929.79 and 5,589.63

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Solution

The fourth proportional to 6,622.92, 9,929.79 and 5,589.63 is: 8,380.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.92 : 9,929.79 = 5,589.63 : x
  2. Step 2: Convert to fraction form
    6,622.92/9,929.79 = 5,589.63/x
  3. Step 3: Cross multiply
    6,622.92x = 9,929.79 × 5,589.63
  4. Step 4: Simplify right side
    6,622.92x = 55,503,852.08
  5. Step 5: Solve for x
    x = 55,503,852.08/6,622.92
  6. Step 6: Final answer
    x = 8,380.57

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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.