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Finding the Fourth Proportional to 8,403.86, 12,604.89 and 2,560.52

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Solution

The fourth proportional to 8,403.86, 12,604.89 and 2,560.52 is: 3,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.86 : 12,604.89 = 2,560.52 : x
  2. Step 2: Convert to fraction form
    8,403.86/12,604.89 = 2,560.52/x
  3. Step 3: Cross multiply
    8,403.86x = 12,604.89 × 2,560.52
  4. Step 4: Simplify right side
    8,403.86x = 32,275,072.94
  5. Step 5: Solve for x
    x = 32,275,072.94/8,403.86
  6. Step 6: Final answer
    x = 3,840.51

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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.