Home / 10,615.13-15,922.73-3,219.65

Finding the Fourth Proportional to 10,615.13, 15,922.73 and 3,219.65

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Solution

The fourth proportional to 10,615.13, 15,922.73 and 3,219.65 is: 4,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.13 : 15,922.73 = 3,219.65 : x
  2. Step 2: Convert to fraction form
    10,615.13/15,922.73 = 3,219.65/x
  3. Step 3: Cross multiply
    10,615.13x = 15,922.73 × 3,219.65
  4. Step 4: Simplify right side
    10,615.13x = 51,265,587.68
  5. Step 5: Solve for x
    x = 51,265,587.68/10,615.13
  6. Step 6: Final answer
    x = 4,829.48

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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.