Home / 12,561.08-17,334.41-7,255.78

Finding the Fourth Proportional to 12,561.08, 17,334.41 and 7,255.78

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Solution

The fourth proportional to 12,561.08, 17,334.41 and 7,255.78 is: 10,013.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.08 : 17,334.41 = 7,255.78 : x
  2. Step 2: Convert to fraction form
    12,561.08/17,334.41 = 7,255.78/x
  3. Step 3: Cross multiply
    12,561.08x = 17,334.41 × 7,255.78
  4. Step 4: Simplify right side
    12,561.08x = 125,774,542.44
  5. Step 5: Solve for x
    x = 125,774,542.44/12,561.08
  6. Step 6: Final answer
    x = 10,013.04

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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.