Home / 10,285.03-15,428.82-3,619.95

Finding the Fourth Proportional to 10,285.03, 15,428.82 and 3,619.95

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Solution

The fourth proportional to 10,285.03, 15,428.82 and 3,619.95 is: 5,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.03 : 15,428.82 = 3,619.95 : x
  2. Step 2: Convert to fraction form
    10,285.03/15,428.82 = 3,619.95/x
  3. Step 3: Cross multiply
    10,285.03x = 15,428.82 × 3,619.95
  4. Step 4: Simplify right side
    10,285.03x = 55,851,556.96
  5. Step 5: Solve for x
    x = 55,851,556.96/10,285.03
  6. Step 6: Final answer
    x = 5,430.38

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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.