Home / 13,189.56-19,789.02-4,424.46

Finding the Fourth Proportional to 13,189.56, 19,789.02 and 4,424.46

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Solution

The fourth proportional to 13,189.56, 19,789.02 and 4,424.46 is: 6,638.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.56 : 19,789.02 = 4,424.46 : x
  2. Step 2: Convert to fraction form
    13,189.56/19,789.02 = 4,424.46/x
  3. Step 3: Cross multiply
    13,189.56x = 19,789.02 × 4,424.46
  4. Step 4: Simplify right side
    13,189.56x = 87,555,727.43
  5. Step 5: Solve for x
    x = 87,555,727.43/13,189.56
  6. Step 6: Final answer
    x = 6,638.26

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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.