Home / 8,739.72-13,104.19-4,291.72

Finding the Fourth Proportional to 8,739.72, 13,104.19 and 4,291.72

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Solution

The fourth proportional to 8,739.72, 13,104.19 and 4,291.72 is: 6,434.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.72 : 13,104.19 = 4,291.72 : x
  2. Step 2: Convert to fraction form
    8,739.72/13,104.19 = 4,291.72/x
  3. Step 3: Cross multiply
    8,739.72x = 13,104.19 × 4,291.72
  4. Step 4: Simplify right side
    8,739.72x = 56,239,514.31
  5. Step 5: Solve for x
    x = 56,239,514.31/8,739.72
  6. Step 6: Final answer
    x = 6,434.93

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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.