Home / 13,338.58-19,994.22-6,744.78

Finding the Fourth Proportional to 13,338.58, 19,994.22 and 6,744.78

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Solution

The fourth proportional to 13,338.58, 19,994.22 and 6,744.78 is: 10,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.58 : 19,994.22 = 6,744.78 : x
  2. Step 2: Convert to fraction form
    13,338.58/19,994.22 = 6,744.78/x
  3. Step 3: Cross multiply
    13,338.58x = 19,994.22 × 6,744.78
  4. Step 4: Simplify right side
    13,338.58x = 134,856,615.17
  5. Step 5: Solve for x
    x = 134,856,615.17/13,338.58
  6. Step 6: Final answer
    x = 10,110.27

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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.