Home / 11,640.19-17,460.37-3,320.19

Finding the Fourth Proportional to 11,640.19, 17,460.37 and 3,320.19

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Solution

The fourth proportional to 11,640.19, 17,460.37 and 3,320.19 is: 4,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.19 : 17,460.37 = 3,320.19 : x
  2. Step 2: Convert to fraction form
    11,640.19/17,460.37 = 3,320.19/x
  3. Step 3: Cross multiply
    11,640.19x = 17,460.37 × 3,320.19
  4. Step 4: Simplify right side
    11,640.19x = 57,971,745.87
  5. Step 5: Solve for x
    x = 57,971,745.87/11,640.19
  6. Step 6: Final answer
    x = 4,980.31

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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.