Home / 12,579.55-17,359.78-7,277.44

Finding the Fourth Proportional to 12,579.55, 17,359.78 and 7,277.44

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Solution

The fourth proportional to 12,579.55, 17,359.78 and 7,277.44 is: 10,042.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.55 : 17,359.78 = 7,277.44 : x
  2. Step 2: Convert to fraction form
    12,579.55/17,359.78 = 7,277.44/x
  3. Step 3: Cross multiply
    12,579.55x = 17,359.78 × 7,277.44
  4. Step 4: Simplify right side
    12,579.55x = 126,334,720.98
  5. Step 5: Solve for x
    x = 126,334,720.98/12,579.55
  6. Step 6: Final answer
    x = 10,042.87

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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.