Home / 13,139.44-19,712.49-3,779.26

Finding the Fourth Proportional to 13,139.44, 19,712.49 and 3,779.26

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Solution

The fourth proportional to 13,139.44, 19,712.49 and 3,779.26 is: 5,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.44 : 19,712.49 = 3,779.26 : x
  2. Step 2: Convert to fraction form
    13,139.44/19,712.49 = 3,779.26/x
  3. Step 3: Cross multiply
    13,139.44x = 19,712.49 × 3,779.26
  4. Step 4: Simplify right side
    13,139.44x = 74,498,526.39
  5. Step 5: Solve for x
    x = 74,498,526.39/13,139.44
  6. Step 6: Final answer
    x = 5,669.84

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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.