Home / 13,580.22-20,364.18-4,217.47

Finding the Fourth Proportional to 13,580.22, 20,364.18 and 4,217.47

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Solution

The fourth proportional to 13,580.22, 20,364.18 and 4,217.47 is: 6,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.22 : 20,364.18 = 4,217.47 : x
  2. Step 2: Convert to fraction form
    13,580.22/20,364.18 = 4,217.47/x
  3. Step 3: Cross multiply
    13,580.22x = 20,364.18 × 4,217.47
  4. Step 4: Simplify right side
    13,580.22x = 85,885,318.22
  5. Step 5: Solve for x
    x = 85,885,318.22/13,580.22
  6. Step 6: Final answer
    x = 6,324.30

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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.