Home / 12,896.16-17,795.40-7,517.76

Finding the Fourth Proportional to 12,896.16, 17,795.40 and 7,517.76

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Solution

The fourth proportional to 12,896.16, 17,795.40 and 7,517.76 is: 10,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.16 : 17,795.40 = 7,517.76 : x
  2. Step 2: Convert to fraction form
    12,896.16/17,795.40 = 7,517.76/x
  3. Step 3: Cross multiply
    12,896.16x = 17,795.40 × 7,517.76
  4. Step 4: Simplify right side
    12,896.16x = 133,781,546.30
  5. Step 5: Solve for x
    x = 133,781,546.30/12,896.16
  6. Step 6: Final answer
    x = 10,373.75

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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.