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Finding the Fourth Proportional to 6,984.35, 9,644.63 and 5,212.88

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Solution

The fourth proportional to 6,984.35, 9,644.63 and 5,212.88 is: 7,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.35 : 9,644.63 = 5,212.88 : x
  2. Step 2: Convert to fraction form
    6,984.35/9,644.63 = 5,212.88/x
  3. Step 3: Cross multiply
    6,984.35x = 9,644.63 × 5,212.88
  4. Step 4: Simplify right side
    6,984.35x = 50,276,298.83
  5. Step 5: Solve for x
    x = 50,276,298.83/6,984.35
  6. Step 6: Final answer
    x = 7,198.42

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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.