Home / 12,896.52-19,347.84-9,189.60

Finding the Fourth Proportional to 12,896.52, 19,347.84 and 9,189.60

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Solution

The fourth proportional to 12,896.52, 19,347.84 and 9,189.60 is: 13,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.52 : 19,347.84 = 9,189.60 : x
  2. Step 2: Convert to fraction form
    12,896.52/19,347.84 = 9,189.60/x
  3. Step 3: Cross multiply
    12,896.52x = 19,347.84 × 9,189.60
  4. Step 4: Simplify right side
    12,896.52x = 177,798,910.46
  5. Step 5: Solve for x
    x = 177,798,910.46/12,896.52
  6. Step 6: Final answer
    x = 13,786.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.