Home / 8,286.48-12,430.58-2,662.72

Finding the Fourth Proportional to 8,286.48, 12,430.58 and 2,662.72

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Solution

The fourth proportional to 8,286.48, 12,430.58 and 2,662.72 is: 3,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.48 : 12,430.58 = 2,662.72 : x
  2. Step 2: Convert to fraction form
    8,286.48/12,430.58 = 2,662.72/x
  3. Step 3: Cross multiply
    8,286.48x = 12,430.58 × 2,662.72
  4. Step 4: Simplify right side
    8,286.48x = 33,099,153.98
  5. Step 5: Solve for x
    x = 33,099,153.98/8,286.48
  6. Step 6: Final answer
    x = 3,994.36

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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.