Home / 13,326.26-18,389.46-7,357.78

Finding the Fourth Proportional to 13,326.26, 18,389.46 and 7,357.78

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Solution

The fourth proportional to 13,326.26, 18,389.46 and 7,357.78 is: 10,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.26 : 18,389.46 = 7,357.78 : x
  2. Step 2: Convert to fraction form
    13,326.26/18,389.46 = 7,357.78/x
  3. Step 3: Cross multiply
    13,326.26x = 18,389.46 × 7,357.78
  4. Step 4: Simplify right side
    13,326.26x = 135,305,601.00
  5. Step 5: Solve for x
    x = 135,305,601.00/13,326.26
  6. Step 6: Final answer
    x = 10,153.31

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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.