Home / 13,406.58-18,488.97-8,371.26

Finding the Fourth Proportional to 13,406.58, 18,488.97 and 8,371.26

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Solution

The fourth proportional to 13,406.58, 18,488.97 and 8,371.26 is: 11,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.58 : 18,488.97 = 8,371.26 : x
  2. Step 2: Convert to fraction form
    13,406.58/18,488.97 = 8,371.26/x
  3. Step 3: Cross multiply
    13,406.58x = 18,488.97 × 8,371.26
  4. Step 4: Simplify right side
    13,406.58x = 154,775,975.00
  5. Step 5: Solve for x
    x = 154,775,975.00/13,406.58
  6. Step 6: Final answer
    x = 11,544.78

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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.