Home / 13,305.26-18,361.38-7,336.78

Finding the Fourth Proportional to 13,305.26, 18,361.38 and 7,336.78

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Solution

The fourth proportional to 13,305.26, 18,361.38 and 7,336.78 is: 10,124.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.26 : 18,361.38 = 7,336.78 : x
  2. Step 2: Convert to fraction form
    13,305.26/18,361.38 = 7,336.78/x
  3. Step 3: Cross multiply
    13,305.26x = 18,361.38 × 7,336.78
  4. Step 4: Simplify right side
    13,305.26x = 134,713,387.17
  5. Step 5: Solve for x
    x = 134,713,387.17/13,305.26
  6. Step 6: Final answer
    x = 10,124.82

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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.