Home / 13,679.15-20,514.67-5,357.00

Finding the Fourth Proportional to 13,679.15, 20,514.67 and 5,357.00

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Solution

The fourth proportional to 13,679.15, 20,514.67 and 5,357.00 is: 8,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679.15 : 20,514.67 = 5,357.00 : x
  2. Step 2: Convert to fraction form
    13,679.15/20,514.67 = 5,357.00/x
  3. Step 3: Cross multiply
    13,679.15x = 20,514.67 × 5,357.00
  4. Step 4: Simplify right side
    13,679.15x = 109,897,125.08
  5. Step 5: Solve for x
    x = 109,897,125.08/13,679.15
  6. Step 6: Final answer
    x = 8,033.92

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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.