Home / 13,616.12-20,389.12-8,073.38

Finding the Fourth Proportional to 13,616.12, 20,389.12 and 8,073.38

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Solution

The fourth proportional to 13,616.12, 20,389.12 and 8,073.38 is: 12,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.12 : 20,389.12 = 8,073.38 : x
  2. Step 2: Convert to fraction form
    13,616.12/20,389.12 = 8,073.38/x
  3. Step 3: Cross multiply
    13,616.12x = 20,389.12 × 8,073.38
  4. Step 4: Simplify right side
    13,616.12x = 164,609,113.63
  5. Step 5: Solve for x
    x = 164,609,113.63/13,616.12
  6. Step 6: Final answer
    x = 12,089.28

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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.