Home / 8,196.81-11,291.83-6,517.68

Finding the Fourth Proportional to 8,196.81, 11,291.83 and 6,517.68

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Solution

The fourth proportional to 8,196.81, 11,291.83 and 6,517.68 is: 8,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,196.81 : 11,291.83 = 6,517.68 : x
  2. Step 2: Convert to fraction form
    8,196.81/11,291.83 = 6,517.68/x
  3. Step 3: Cross multiply
    8,196.81x = 11,291.83 × 6,517.68
  4. Step 4: Simplify right side
    8,196.81x = 73,596,534.55
  5. Step 5: Solve for x
    x = 73,596,534.55/8,196.81
  6. Step 6: Final answer
    x = 8,978.68

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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.