Home / 12,161.52-18,242.55-5,585.94

Finding the Fourth Proportional to 12,161.52, 18,242.55 and 5,585.94

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Solution

The fourth proportional to 12,161.52, 18,242.55 and 5,585.94 is: 8,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.52 : 18,242.55 = 5,585.94 : x
  2. Step 2: Convert to fraction form
    12,161.52/18,242.55 = 5,585.94/x
  3. Step 3: Cross multiply
    12,161.52x = 18,242.55 × 5,585.94
  4. Step 4: Simplify right side
    12,161.52x = 101,901,789.75
  5. Step 5: Solve for x
    x = 101,901,789.75/12,161.52
  6. Step 6: Final answer
    x = 8,379.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.