Home / 18,685.24-25,764.30-13,961.56

Finding the Fourth Proportional to 18,685.24, 25,764.30 and 13,961.56

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Solution

The fourth proportional to 18,685.24, 25,764.30 and 13,961.56 is: 19,251.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.24 : 25,764.30 = 13,961.56 : x
  2. Step 2: Convert to fraction form
    18,685.24/25,764.30 = 13,961.56/x
  3. Step 3: Cross multiply
    18,685.24x = 25,764.30 × 13,961.56
  4. Step 4: Simplify right side
    18,685.24x = 359,709,820.31
  5. Step 5: Solve for x
    x = 359,709,820.31/18,685.24
  6. Step 6: Final answer
    x = 19,251.01

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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.