Home / 8,861.20-13,287.44-5,164.36

Finding the Fourth Proportional to 8,861.20, 13,287.44 and 5,164.36

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Solution

The fourth proportional to 8,861.20, 13,287.44 and 5,164.36 is: 7,744.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.20 : 13,287.44 = 5,164.36 : x
  2. Step 2: Convert to fraction form
    8,861.20/13,287.44 = 5,164.36/x
  3. Step 3: Cross multiply
    8,861.20x = 13,287.44 × 5,164.36
  4. Step 4: Simplify right side
    8,861.20x = 68,621,103.33
  5. Step 5: Solve for x
    x = 68,621,103.33/8,861.20
  6. Step 6: Final answer
    x = 7,744.00

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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.