Home / 13,208.75-19,819.65-5,812.28

Finding the Fourth Proportional to 13,208.75, 19,819.65 and 5,812.28

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Solution

The fourth proportional to 13,208.75, 19,819.65 and 5,812.28 is: 8,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.75 : 19,819.65 = 5,812.28 : x
  2. Step 2: Convert to fraction form
    13,208.75/19,819.65 = 5,812.28/x
  3. Step 3: Cross multiply
    13,208.75x = 19,819.65 × 5,812.28
  4. Step 4: Simplify right side
    13,208.75x = 115,197,355.30
  5. Step 5: Solve for x
    x = 115,197,355.30/13,208.75
  6. Step 6: Final answer
    x = 8,721.29

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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.