Home / 13,919.26-19,208.73-7,631.50

Finding the Fourth Proportional to 13,919.26, 19,208.73 and 7,631.50

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Solution

The fourth proportional to 13,919.26, 19,208.73 and 7,631.50 is: 10,531.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.26 : 19,208.73 = 7,631.50 : x
  2. Step 2: Convert to fraction form
    13,919.26/19,208.73 = 7,631.50/x
  3. Step 3: Cross multiply
    13,919.26x = 19,208.73 × 7,631.50
  4. Step 4: Simplify right side
    13,919.26x = 146,591,423.00
  5. Step 5: Solve for x
    x = 146,591,423.00/13,919.26
  6. Step 6: Final answer
    x = 10,531.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.