Home / 8,857.20-13,287.40-3,663.60

Finding the Fourth Proportional to 8,857.20, 13,287.40 and 3,663.60

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Solution

The fourth proportional to 8,857.20, 13,287.40 and 3,663.60 is: 5,496.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.20 : 13,287.40 = 3,663.60 : x
  2. Step 2: Convert to fraction form
    8,857.20/13,287.40 = 3,663.60/x
  3. Step 3: Cross multiply
    8,857.20x = 13,287.40 × 3,663.60
  4. Step 4: Simplify right side
    8,857.20x = 48,679,718.64
  5. Step 5: Solve for x
    x = 48,679,718.64/8,857.20
  6. Step 6: Final answer
    x = 5,496.06

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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.