Home / 13,568.83-20,445.67-11,157.66

Finding the Fourth Proportional to 13,568.83, 20,445.67 and 11,157.66

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Solution

The fourth proportional to 13,568.83, 20,445.67 and 11,157.66 is: 16,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.83 : 20,445.67 = 11,157.66 : x
  2. Step 2: Convert to fraction form
    13,568.83/20,445.67 = 11,157.66/x
  3. Step 3: Cross multiply
    13,568.83x = 20,445.67 × 11,157.66
  4. Step 4: Simplify right side
    13,568.83x = 228,125,885.45
  5. Step 5: Solve for x
    x = 228,125,885.45/13,568.83
  6. Step 6: Final answer
    x = 16,812.49

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.