Home / 13,269.87-19,904.82-3,409.23

Finding the Fourth Proportional to 13,269.87, 19,904.82 and 3,409.23

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Solution

The fourth proportional to 13,269.87, 19,904.82 and 3,409.23 is: 5,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.87 : 19,904.82 = 3,409.23 : x
  2. Step 2: Convert to fraction form
    13,269.87/19,904.82 = 3,409.23/x
  3. Step 3: Cross multiply
    13,269.87x = 19,904.82 × 3,409.23
  4. Step 4: Simplify right side
    13,269.87x = 67,860,109.49
  5. Step 5: Solve for x
    x = 67,860,109.49/13,269.87
  6. Step 6: Final answer
    x = 5,113.85

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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.