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Finding the Fourth Proportional to 8,857.70, 13,287.77 and 3,927.23

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Solution

The fourth proportional to 8,857.70, 13,287.77 and 3,927.23 is: 5,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.70 : 13,287.77 = 3,927.23 : x
  2. Step 2: Convert to fraction form
    8,857.70/13,287.77 = 3,927.23/x
  3. Step 3: Cross multiply
    8,857.70x = 13,287.77 × 3,927.23
  4. Step 4: Simplify right side
    8,857.70x = 52,184,150.50
  5. Step 5: Solve for x
    x = 52,184,150.50/8,857.70
  6. Step 6: Final answer
    x = 5,891.39

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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.