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Finding the Fourth Proportional to 12,776.97, 17,627.49 and 12,757.26

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Solution

The fourth proportional to 12,776.97, 17,627.49 and 12,757.26 is: 17,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.97 : 17,627.49 = 12,757.26 : x
  2. Step 2: Convert to fraction form
    12,776.97/17,627.49 = 12,757.26/x
  3. Step 3: Cross multiply
    12,776.97x = 17,627.49 × 12,757.26
  4. Step 4: Simplify right side
    12,776.97x = 224,878,462.86
  5. Step 5: Solve for x
    x = 224,878,462.86/12,776.97
  6. Step 6: Final answer
    x = 17,600.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.