Home / 13,118.91-19,683.07-5,619.33

Finding the Fourth Proportional to 13,118.91, 19,683.07 and 5,619.33

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Solution

The fourth proportional to 13,118.91, 19,683.07 and 5,619.33 is: 8,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.91 : 19,683.07 = 5,619.33 : x
  2. Step 2: Convert to fraction form
    13,118.91/19,683.07 = 5,619.33/x
  3. Step 3: Cross multiply
    13,118.91x = 19,683.07 × 5,619.33
  4. Step 4: Simplify right side
    13,118.91x = 110,605,553.28
  5. Step 5: Solve for x
    x = 110,605,553.28/13,118.91
  6. Step 6: Final answer
    x = 8,431.00

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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.