Home / 9,879.20-13,633.30-5,402.96

Finding the Fourth Proportional to 9,879.20, 13,633.30 and 5,402.96

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Solution

The fourth proportional to 9,879.20, 13,633.30 and 5,402.96 is: 7,456.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.20 : 13,633.30 = 5,402.96 : x
  2. Step 2: Convert to fraction form
    9,879.20/13,633.30 = 5,402.96/x
  3. Step 3: Cross multiply
    9,879.20x = 13,633.30 × 5,402.96
  4. Step 4: Simplify right side
    9,879.20x = 73,660,174.57
  5. Step 5: Solve for x
    x = 73,660,174.57/9,879.20
  6. Step 6: Final answer
    x = 7,456.09

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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.