Home / 13,927.68-20,785.68-12,994.56

Finding the Fourth Proportional to 13,927.68, 20,785.68 and 12,994.56

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Solution

The fourth proportional to 13,927.68, 20,785.68 and 12,994.56 is: 19,393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.68 : 20,785.68 = 12,994.56 : x
  2. Step 2: Convert to fraction form
    13,927.68/20,785.68 = 12,994.56/x
  3. Step 3: Cross multiply
    13,927.68x = 20,785.68 × 12,994.56
  4. Step 4: Simplify right side
    13,927.68x = 270,100,765.90
  5. Step 5: Solve for x
    x = 270,100,765.90/13,927.68
  6. Step 6: Final answer
    x = 19,393.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.