Home / 13,565.21-20,353.17-4,205.96

Finding the Fourth Proportional to 13,565.21, 20,353.17 and 4,205.96

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Solution

The fourth proportional to 13,565.21, 20,353.17 and 4,205.96 is: 6,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.21 : 20,353.17 = 4,205.96 : x
  2. Step 2: Convert to fraction form
    13,565.21/20,353.17 = 4,205.96/x
  3. Step 3: Cross multiply
    13,565.21x = 20,353.17 × 4,205.96
  4. Step 4: Simplify right side
    13,565.21x = 85,604,597.86
  5. Step 5: Solve for x
    x = 85,604,597.86/13,565.21
  6. Step 6: Final answer
    x = 6,310.60

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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.