Home / 13,572.36-18,724.44-7,906.26

Finding the Fourth Proportional to 13,572.36, 18,724.44 and 7,906.26

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Solution

The fourth proportional to 13,572.36, 18,724.44 and 7,906.26 is: 10,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.36 : 18,724.44 = 7,906.26 : x
  2. Step 2: Convert to fraction form
    13,572.36/18,724.44 = 7,906.26/x
  3. Step 3: Cross multiply
    13,572.36x = 18,724.44 × 7,906.26
  4. Step 4: Simplify right side
    13,572.36x = 148,040,290.99
  5. Step 5: Solve for x
    x = 148,040,290.99/13,572.36
  6. Step 6: Final answer
    x = 10,907.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.