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Finding the Fourth Proportional to 8,513.94, 12,772.95 and 2,670.55

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Solution

The fourth proportional to 8,513.94, 12,772.95 and 2,670.55 is: 4,006.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.94 : 12,772.95 = 2,670.55 : x
  2. Step 2: Convert to fraction form
    8,513.94/12,772.95 = 2,670.55/x
  3. Step 3: Cross multiply
    8,513.94x = 12,772.95 × 2,670.55
  4. Step 4: Simplify right side
    8,513.94x = 34,110,759.68
  5. Step 5: Solve for x
    x = 34,110,759.68/8,513.94
  6. Step 6: Final answer
    x = 4,006.46

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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.