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Finding the Fourth Proportional to 8,403.63, 12,607.32 and 2,560.69

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Solution

The fourth proportional to 8,403.63, 12,607.32 and 2,560.69 is: 3,841.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.63 : 12,607.32 = 2,560.69 : x
  2. Step 2: Convert to fraction form
    8,403.63/12,607.32 = 2,560.69/x
  3. Step 3: Cross multiply
    8,403.63x = 12,607.32 × 2,560.69
  4. Step 4: Simplify right side
    8,403.63x = 32,283,438.25
  5. Step 5: Solve for x
    x = 32,283,438.25/8,403.63
  6. Step 6: Final answer
    x = 3,841.61

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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.