Home / 9,879.91-13,634.26-5,903.35

Finding the Fourth Proportional to 9,879.91, 13,634.26 and 5,903.35

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Solution

The fourth proportional to 9,879.91, 13,634.26 and 5,903.35 is: 8,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.91 : 13,634.26 = 5,903.35 : x
  2. Step 2: Convert to fraction form
    9,879.91/13,634.26 = 5,903.35/x
  3. Step 3: Cross multiply
    9,879.91x = 13,634.26 × 5,903.35
  4. Step 4: Simplify right side
    9,879.91x = 80,487,759.93
  5. Step 5: Solve for x
    x = 80,487,759.93/9,879.91
  6. Step 6: Final answer
    x = 8,146.61

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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.