Home / 13,010.12-19,515.13-3,149.38

Finding the Fourth Proportional to 13,010.12, 19,515.13 and 3,149.38

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Solution

The fourth proportional to 13,010.12, 19,515.13 and 3,149.38 is: 4,724.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.12 : 19,515.13 = 3,149.38 : x
  2. Step 2: Convert to fraction form
    13,010.12/19,515.13 = 3,149.38/x
  3. Step 3: Cross multiply
    13,010.12x = 19,515.13 × 3,149.38
  4. Step 4: Simplify right side
    13,010.12x = 61,460,576.64
  5. Step 5: Solve for x
    x = 61,460,576.64/13,010.12
  6. Step 6: Final answer
    x = 4,724.06

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1.5x scale

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.