Home / 13,945.12-20,926.38-13,894.08

Finding the Fourth Proportional to 13,945.12, 20,926.38 and 13,894.08

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Solution

The fourth proportional to 13,945.12, 20,926.38 and 13,894.08 is: 20,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.12 : 20,926.38 = 13,894.08 : x
  2. Step 2: Convert to fraction form
    13,945.12/20,926.38 = 13,894.08/x
  3. Step 3: Cross multiply
    13,945.12x = 20,926.38 × 13,894.08
  4. Step 4: Simplify right side
    13,945.12x = 290,752,797.83
  5. Step 5: Solve for x
    x = 290,752,797.83/13,945.12
  6. Step 6: Final answer
    x = 20,849.79

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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.