Home / 13,568.21-20,355.23-4,208.04

Finding the Fourth Proportional to 13,568.21, 20,355.23 and 4,208.04

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Solution

The fourth proportional to 13,568.21, 20,355.23 and 4,208.04 is: 6,312.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.21 : 20,355.23 = 4,208.04 : x
  2. Step 2: Convert to fraction form
    13,568.21/20,355.23 = 4,208.04/x
  3. Step 3: Cross multiply
    13,568.21x = 20,355.23 × 4,208.04
  4. Step 4: Simplify right side
    13,568.21x = 85,655,632.57
  5. Step 5: Solve for x
    x = 85,655,632.57/13,568.21
  6. Step 6: Final answer
    x = 6,312.97

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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.