Home / 13,600.96-20,395.98-4,237.90

Finding the Fourth Proportional to 13,600.96, 20,395.98 and 4,237.90

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Solution

The fourth proportional to 13,600.96, 20,395.98 and 4,237.90 is: 6,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.96 : 20,395.98 = 4,237.90 : x
  2. Step 2: Convert to fraction form
    13,600.96/20,395.98 = 4,237.90/x
  3. Step 3: Cross multiply
    13,600.96x = 20,395.98 × 4,237.90
  4. Step 4: Simplify right side
    13,600.96x = 86,436,123.64
  5. Step 5: Solve for x
    x = 86,436,123.64/13,600.96
  6. Step 6: Final answer
    x = 6,355.15

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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.