Home / 13,788.20-19,028.06-7,500.60

Finding the Fourth Proportional to 13,788.20, 19,028.06 and 7,500.60

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Solution

The fourth proportional to 13,788.20, 19,028.06 and 7,500.60 is: 10,351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.20 : 19,028.06 = 7,500.60 : x
  2. Step 2: Convert to fraction form
    13,788.20/19,028.06 = 7,500.60/x
  3. Step 3: Cross multiply
    13,788.20x = 19,028.06 × 7,500.60
  4. Step 4: Simplify right side
    13,788.20x = 142,721,866.84
  5. Step 5: Solve for x
    x = 142,721,866.84/13,788.20
  6. Step 6: Final answer
    x = 10,351.02

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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.