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Finding the Fourth Proportional to 6,642.14, 9,953.89 and 5,249.35

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Solution

The fourth proportional to 6,642.14, 9,953.89 and 5,249.35 is: 7,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.14 : 9,953.89 = 5,249.35 : x
  2. Step 2: Convert to fraction form
    6,642.14/9,953.89 = 5,249.35/x
  3. Step 3: Cross multiply
    6,642.14x = 9,953.89 × 5,249.35
  4. Step 4: Simplify right side
    6,642.14x = 52,251,452.47
  5. Step 5: Solve for x
    x = 52,251,452.47/6,642.14
  6. Step 6: Final answer
    x = 7,866.66

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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.