Home / 13,190.63-18,203.13-9,836.42

Finding the Fourth Proportional to 13,190.63, 18,203.13 and 9,836.42

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Solution

The fourth proportional to 13,190.63, 18,203.13 and 9,836.42 is: 13,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.63 : 18,203.13 = 9,836.42 : x
  2. Step 2: Convert to fraction form
    13,190.63/18,203.13 = 9,836.42/x
  3. Step 3: Cross multiply
    13,190.63x = 18,203.13 × 9,836.42
  4. Step 4: Simplify right side
    13,190.63x = 179,053,540.98
  5. Step 5: Solve for x
    x = 179,053,540.98/13,190.63
  6. Step 6: Final answer
    x = 13,574.30

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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.