Home / 11,619.04-17,430.72-3,828.40

Finding the Fourth Proportional to 11,619.04, 17,430.72 and 3,828.40

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Solution

The fourth proportional to 11,619.04, 17,430.72 and 3,828.40 is: 5,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.04 : 17,430.72 = 3,828.40 : x
  2. Step 2: Convert to fraction form
    11,619.04/17,430.72 = 3,828.40/x
  3. Step 3: Cross multiply
    11,619.04x = 17,430.72 × 3,828.40
  4. Step 4: Simplify right side
    11,619.04x = 66,731,768.45
  5. Step 5: Solve for x
    x = 66,731,768.45/11,619.04
  6. Step 6: Final answer
    x = 5,743.31

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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.