Home / 13,569.59-20,355.67-4,209.71

Finding the Fourth Proportional to 13,569.59, 20,355.67 and 4,209.71

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Solution

The fourth proportional to 13,569.59, 20,355.67 and 4,209.71 is: 6,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.59 : 20,355.67 = 4,209.71 : x
  2. Step 2: Convert to fraction form
    13,569.59/20,355.67 = 4,209.71/x
  3. Step 3: Cross multiply
    13,569.59x = 20,355.67 × 4,209.71
  4. Step 4: Simplify right side
    13,569.59x = 85,691,355.25
  5. Step 5: Solve for x
    x = 85,691,355.25/13,569.59
  6. Step 6: Final answer
    x = 6,314.96

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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.