Home / 13,426.52-18,525.60-8,121.22

Finding the Fourth Proportional to 13,426.52, 18,525.60 and 8,121.22

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Solution

The fourth proportional to 13,426.52, 18,525.60 and 8,121.22 is: 11,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.52 : 18,525.60 = 8,121.22 : x
  2. Step 2: Convert to fraction form
    13,426.52/18,525.60 = 8,121.22/x
  3. Step 3: Cross multiply
    13,426.52x = 18,525.60 × 8,121.22
  4. Step 4: Simplify right side
    13,426.52x = 150,450,473.23
  5. Step 5: Solve for x
    x = 150,450,473.23/13,426.52
  6. Step 6: Final answer
    x = 11,205.47

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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.