Home / 13,569.35-20,355.27-4,209.44

Finding the Fourth Proportional to 13,569.35, 20,355.27 and 4,209.44

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Solution

The fourth proportional to 13,569.35, 20,355.27 and 4,209.44 is: 6,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.35 : 20,355.27 = 4,209.44 : x
  2. Step 2: Convert to fraction form
    13,569.35/20,355.27 = 4,209.44/x
  3. Step 3: Cross multiply
    13,569.35x = 20,355.27 × 4,209.44
  4. Step 4: Simplify right side
    13,569.35x = 85,684,287.75
  5. Step 5: Solve for x
    x = 85,684,287.75/13,569.35
  6. Step 6: Final answer
    x = 6,314.55

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1.5x scale

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.