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Finding the Fourth Proportional to 15,806.03, 23,701.91 and 8,408.90

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Solution

The fourth proportional to 15,806.03, 23,701.91 and 8,408.90 is: 12,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.03 : 23,701.91 = 8,408.90 : x
  2. Step 2: Convert to fraction form
    15,806.03/23,701.91 = 8,408.90/x
  3. Step 3: Cross multiply
    15,806.03x = 23,701.91 × 8,408.90
  4. Step 4: Simplify right side
    15,806.03x = 199,307,008.21
  5. Step 5: Solve for x
    x = 199,307,008.21/15,806.03
  6. Step 6: Final answer
    x = 12,609.56

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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.