Home / 13,344.78-18,415.89-7,295.05

Finding the Fourth Proportional to 13,344.78, 18,415.89 and 7,295.05

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Solution

The fourth proportional to 13,344.78, 18,415.89 and 7,295.05 is: 10,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.78 : 18,415.89 = 7,295.05 : x
  2. Step 2: Convert to fraction form
    13,344.78/18,415.89 = 7,295.05/x
  3. Step 3: Cross multiply
    13,344.78x = 18,415.89 × 7,295.05
  4. Step 4: Simplify right side
    13,344.78x = 134,344,757.77
  5. Step 5: Solve for x
    x = 134,344,757.77/13,344.78
  6. Step 6: Final answer
    x = 10,067.21

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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.