Home / 13,305.88-19,958.96-6,378.76

Finding the Fourth Proportional to 13,305.88, 19,958.96 and 6,378.76

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Solution

The fourth proportional to 13,305.88, 19,958.96 and 6,378.76 is: 9,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.88 : 19,958.96 = 6,378.76 : x
  2. Step 2: Convert to fraction form
    13,305.88/19,958.96 = 6,378.76/x
  3. Step 3: Cross multiply
    13,305.88x = 19,958.96 × 6,378.76
  4. Step 4: Simplify right side
    13,305.88x = 127,313,415.69
  5. Step 5: Solve for x
    x = 127,313,415.69/13,305.88
  6. Step 6: Final answer
    x = 9,568.21

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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.