Home / 13,185.52-18,198.04-7,520.26

Finding the Fourth Proportional to 13,185.52, 18,198.04 and 7,520.26

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Solution

The fourth proportional to 13,185.52, 18,198.04 and 7,520.26 is: 10,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.52 : 18,198.04 = 7,520.26 : x
  2. Step 2: Convert to fraction form
    13,185.52/18,198.04 = 7,520.26/x
  3. Step 3: Cross multiply
    13,185.52x = 18,198.04 × 7,520.26
  4. Step 4: Simplify right side
    13,185.52x = 136,853,992.29
  5. Step 5: Solve for x
    x = 136,853,992.29/13,185.52
  6. Step 6: Final answer
    x = 10,379.11

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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.