Home / 8,191.24-11,291.99-6,513.32

Finding the Fourth Proportional to 8,191.24, 11,291.99 and 6,513.32

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Solution

The fourth proportional to 8,191.24, 11,291.99 and 6,513.32 is: 8,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.24 : 11,291.99 = 6,513.32 : x
  2. Step 2: Convert to fraction form
    8,191.24/11,291.99 = 6,513.32/x
  3. Step 3: Cross multiply
    8,191.24x = 11,291.99 × 6,513.32
  4. Step 4: Simplify right side
    8,191.24x = 73,548,339.97
  5. Step 5: Solve for x
    x = 73,548,339.97/8,191.24
  6. Step 6: Final answer
    x = 8,978.90

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Double scale
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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.