Home / 13,189.06-19,788.27-4,423.96

Finding the Fourth Proportional to 13,189.06, 19,788.27 and 4,423.96

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Solution

The fourth proportional to 13,189.06, 19,788.27 and 4,423.96 is: 6,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.06 : 19,788.27 = 4,423.96 : x
  2. Step 2: Convert to fraction form
    13,189.06/19,788.27 = 4,423.96/x
  3. Step 3: Cross multiply
    13,189.06x = 19,788.27 × 4,423.96
  4. Step 4: Simplify right side
    13,189.06x = 87,542,514.95
  5. Step 5: Solve for x
    x = 87,542,514.95/13,189.06
  6. Step 6: Final answer
    x = 6,637.51

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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.