Home / 13,269.72-19,901.39-3,907.19

Finding the Fourth Proportional to 13,269.72, 19,901.39 and 3,907.19

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Solution

The fourth proportional to 13,269.72, 19,901.39 and 3,907.19 is: 5,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.72 : 19,901.39 = 3,907.19 : x
  2. Step 2: Convert to fraction form
    13,269.72/19,901.39 = 3,907.19/x
  3. Step 3: Cross multiply
    13,269.72x = 19,901.39 × 3,907.19
  4. Step 4: Simplify right side
    13,269.72x = 77,758,511.99
  5. Step 5: Solve for x
    x = 77,758,511.99/13,269.72
  6. Step 6: Final answer
    x = 5,859.85

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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.