Home / 13,334.31-19,994.94-7,789.05

Finding the Fourth Proportional to 13,334.31, 19,994.94 and 7,789.05

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Solution

The fourth proportional to 13,334.31, 19,994.94 and 7,789.05 is: 11,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.31 : 19,994.94 = 7,789.05 : x
  2. Step 2: Convert to fraction form
    13,334.31/19,994.94 = 7,789.05/x
  3. Step 3: Cross multiply
    13,334.31x = 19,994.94 × 7,789.05
  4. Step 4: Simplify right side
    13,334.31x = 155,741,587.41
  5. Step 5: Solve for x
    x = 155,741,587.41/13,334.31
  6. Step 6: Final answer
    x = 11,679.76

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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.