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Finding the Fourth Proportional to 8,393.70, 12,589.70 and 2,550.36

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Solution

The fourth proportional to 8,393.70, 12,589.70 and 2,550.36 is: 3,825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.70 : 12,589.70 = 2,550.36 : x
  2. Step 2: Convert to fraction form
    8,393.70/12,589.70 = 2,550.36/x
  3. Step 3: Cross multiply
    8,393.70x = 12,589.70 × 2,550.36
  4. Step 4: Simplify right side
    8,393.70x = 32,108,267.29
  5. Step 5: Solve for x
    x = 32,108,267.29/8,393.70
  6. Step 6: Final answer
    x = 3,825.28

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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.