Home / 13,344.88-18,415.26-7,376.38

Finding the Fourth Proportional to 13,344.88, 18,415.26 and 7,376.38

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Solution

The fourth proportional to 13,344.88, 18,415.26 and 7,376.38 is: 10,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.88 : 18,415.26 = 7,376.38 : x
  2. Step 2: Convert to fraction form
    13,344.88/18,415.26 = 7,376.38/x
  3. Step 3: Cross multiply
    13,344.88x = 18,415.26 × 7,376.38
  4. Step 4: Simplify right side
    13,344.88x = 135,837,955.56
  5. Step 5: Solve for x
    x = 135,837,955.56/13,344.88
  6. Step 6: Final answer
    x = 10,179.03

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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.