Home / 13,083.91-19,620.39-5,287.25

Finding the Fourth Proportional to 13,083.91, 19,620.39 and 5,287.25

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Solution

The fourth proportional to 13,083.91, 19,620.39 and 5,287.25 is: 7,928.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.91 : 19,620.39 = 5,287.25 : x
  2. Step 2: Convert to fraction form
    13,083.91/19,620.39 = 5,287.25/x
  3. Step 3: Cross multiply
    13,083.91x = 19,620.39 × 5,287.25
  4. Step 4: Simplify right side
    13,083.91x = 103,737,907.03
  5. Step 5: Solve for x
    x = 103,737,907.03/13,083.91
  6. Step 6: Final answer
    x = 7,928.66

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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.