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Finding the Fourth Proportional to 8,513.88, 12,772.99 and 2,670.54

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Solution

The fourth proportional to 8,513.88, 12,772.99 and 2,670.54 is: 4,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.88 : 12,772.99 = 2,670.54 : x
  2. Step 2: Convert to fraction form
    8,513.88/12,772.99 = 2,670.54/x
  3. Step 3: Cross multiply
    8,513.88x = 12,772.99 × 2,670.54
  4. Step 4: Simplify right side
    8,513.88x = 34,110,816.93
  5. Step 5: Solve for x
    x = 34,110,816.93/8,513.88
  6. Step 6: Final answer
    x = 4,006.49

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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.