Home / 12,561.58-17,335.20-6,896.86

Finding the Fourth Proportional to 12,561.58, 17,335.20 and 6,896.86

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Solution

The fourth proportional to 12,561.58, 17,335.20 and 6,896.86 is: 9,517.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.58 : 17,335.20 = 6,896.86 : x
  2. Step 2: Convert to fraction form
    12,561.58/17,335.20 = 6,896.86/x
  3. Step 3: Cross multiply
    12,561.58x = 17,335.20 × 6,896.86
  4. Step 4: Simplify right side
    12,561.58x = 119,558,447.47
  5. Step 5: Solve for x
    x = 119,558,447.47/12,561.58
  6. Step 6: Final answer
    x = 9,517.79

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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.