Home / 13,085.28-19,631.16-3,851.28

Finding the Fourth Proportional to 13,085.28, 19,631.16 and 3,851.28

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Solution

The fourth proportional to 13,085.28, 19,631.16 and 3,851.28 is: 5,777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.28 : 19,631.16 = 3,851.28 : x
  2. Step 2: Convert to fraction form
    13,085.28/19,631.16 = 3,851.28/x
  3. Step 3: Cross multiply
    13,085.28x = 19,631.16 × 3,851.28
  4. Step 4: Simplify right side
    13,085.28x = 75,605,093.88
  5. Step 5: Solve for x
    x = 75,605,093.88/13,085.28
  6. Step 6: Final answer
    x = 5,777.87

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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.