Home / 19,550.12-26,983.86-11,171.48

Finding the Fourth Proportional to 19,550.12, 26,983.86 and 11,171.48

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Solution

The fourth proportional to 19,550.12, 26,983.86 and 11,171.48 is: 15,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,550.12 : 26,983.86 = 11,171.48 : x
  2. Step 2: Convert to fraction form
    19,550.12/26,983.86 = 11,171.48/x
  3. Step 3: Cross multiply
    19,550.12x = 26,983.86 × 11,171.48
  4. Step 4: Simplify right side
    19,550.12x = 301,449,652.31
  5. Step 5: Solve for x
    x = 301,449,652.31/19,550.12
  6. Step 6: Final answer
    x = 15,419.32

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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.