Home / 13,744.72-20,619.53-4,386.79

Finding the Fourth Proportional to 13,744.72, 20,619.53 and 4,386.79

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Solution

The fourth proportional to 13,744.72, 20,619.53 and 4,386.79 is: 6,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.72 : 20,619.53 = 4,386.79 : x
  2. Step 2: Convert to fraction form
    13,744.72/20,619.53 = 4,386.79/x
  3. Step 3: Cross multiply
    13,744.72x = 20,619.53 × 4,386.79
  4. Step 4: Simplify right side
    13,744.72x = 90,453,548.01
  5. Step 5: Solve for x
    x = 90,453,548.01/13,744.72
  6. Step 6: Final answer
    x = 6,580.97

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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.