Home / 13,218.36-19,826.92-3,357.82

Finding the Fourth Proportional to 13,218.36, 19,826.92 and 3,357.82

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Solution

The fourth proportional to 13,218.36, 19,826.92 and 3,357.82 is: 5,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.36 : 19,826.92 = 3,357.82 : x
  2. Step 2: Convert to fraction form
    13,218.36/19,826.92 = 3,357.82/x
  3. Step 3: Cross multiply
    13,218.36x = 19,826.92 × 3,357.82
  4. Step 4: Simplify right side
    13,218.36x = 66,575,228.51
  5. Step 5: Solve for x
    x = 66,575,228.51/13,218.36
  6. Step 6: Final answer
    x = 5,036.57

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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.