Home / 13,188.85-19,783.01-3,828.49

Finding the Fourth Proportional to 13,188.85, 19,783.01 and 3,828.49

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Solution

The fourth proportional to 13,188.85, 19,783.01 and 3,828.49 is: 5,742.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.85 : 19,783.01 = 3,828.49 : x
  2. Step 2: Convert to fraction form
    13,188.85/19,783.01 = 3,828.49/x
  3. Step 3: Cross multiply
    13,188.85x = 19,783.01 × 3,828.49
  4. Step 4: Simplify right side
    13,188.85x = 75,739,016.07
  5. Step 5: Solve for x
    x = 75,739,016.07/13,188.85
  6. Step 6: Final answer
    x = 5,742.66

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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.