Home / 13,619.30-18,796.87-11,347.04

Finding the Fourth Proportional to 13,619.30, 18,796.87 and 11,347.04

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Solution

The fourth proportional to 13,619.30, 18,796.87 and 11,347.04 is: 15,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.30 : 18,796.87 = 11,347.04 : x
  2. Step 2: Convert to fraction form
    13,619.30/18,796.87 = 11,347.04/x
  3. Step 3: Cross multiply
    13,619.30x = 18,796.87 × 11,347.04
  4. Step 4: Simplify right side
    13,619.30x = 213,288,854.39
  5. Step 5: Solve for x
    x = 213,288,854.39/13,619.30
  6. Step 6: Final answer
    x = 15,660.78

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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.