Home / 13,235.48-18,259.14-8,198.36

Finding the Fourth Proportional to 13,235.48, 18,259.14 and 8,198.36

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Solution

The fourth proportional to 13,235.48, 18,259.14 and 8,198.36 is: 11,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.48 : 18,259.14 = 8,198.36 : x
  2. Step 2: Convert to fraction form
    13,235.48/18,259.14 = 8,198.36/x
  3. Step 3: Cross multiply
    13,235.48x = 18,259.14 × 8,198.36
  4. Step 4: Simplify right side
    13,235.48x = 149,695,003.01
  5. Step 5: Solve for x
    x = 149,695,003.01/13,235.48
  6. Step 6: Final answer
    x = 11,310.13

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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.