Home / 17,619.36-26,433.38-5,139.51

Finding the Fourth Proportional to 17,619.36, 26,433.38 and 5,139.51

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Solution

The fourth proportional to 17,619.36, 26,433.38 and 5,139.51 is: 7,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.36 : 26,433.38 = 5,139.51 : x
  2. Step 2: Convert to fraction form
    17,619.36/26,433.38 = 5,139.51/x
  3. Step 3: Cross multiply
    17,619.36x = 26,433.38 × 5,139.51
  4. Step 4: Simplify right side
    17,619.36x = 135,854,620.84
  5. Step 5: Solve for x
    x = 135,854,620.84/17,619.36
  6. Step 6: Final answer
    x = 7,710.53

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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.