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Finding the Fourth Proportional to 6,656.68, 9,986.60 and 3,326.86

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Solution

The fourth proportional to 6,656.68, 9,986.60 and 3,326.86 is: 4,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.68 : 9,986.60 = 3,326.86 : x
  2. Step 2: Convert to fraction form
    6,656.68/9,986.60 = 3,326.86/x
  3. Step 3: Cross multiply
    6,656.68x = 9,986.60 × 3,326.86
  4. Step 4: Simplify right side
    6,656.68x = 33,224,020.08
  5. Step 5: Solve for x
    x = 33,224,020.08/6,656.68
  6. Step 6: Final answer
    x = 4,991.08

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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.