Home / 13,010.21-19,515.36-3,149.47

Finding the Fourth Proportional to 13,010.21, 19,515.36 and 3,149.47

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Solution

The fourth proportional to 13,010.21, 19,515.36 and 3,149.47 is: 4,724.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.21 : 19,515.36 = 3,149.47 : x
  2. Step 2: Convert to fraction form
    13,010.21/19,515.36 = 3,149.47/x
  3. Step 3: Cross multiply
    13,010.21x = 19,515.36 × 3,149.47
  4. Step 4: Simplify right side
    13,010.21x = 61,462,984.20
  5. Step 5: Solve for x
    x = 61,462,984.20/13,010.21
  6. Step 6: Final answer
    x = 4,724.21

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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.