Home / 13,569.21-20,356.73-4,209.04

Finding the Fourth Proportional to 13,569.21, 20,356.73 and 4,209.04

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Solution

The fourth proportional to 13,569.21, 20,356.73 and 4,209.04 is: 6,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.21 : 20,356.73 = 4,209.04 : x
  2. Step 2: Convert to fraction form
    13,569.21/20,356.73 = 4,209.04/x
  3. Step 3: Cross multiply
    13,569.21x = 20,356.73 × 4,209.04
  4. Step 4: Simplify right side
    13,569.21x = 85,682,290.84
  5. Step 5: Solve for x
    x = 85,682,290.84/13,569.21
  6. Step 6: Final answer
    x = 6,314.46

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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.