Home / 13,010.31-19,515.39-3,149.58

Finding the Fourth Proportional to 13,010.31, 19,515.39 and 3,149.58

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Solution

The fourth proportional to 13,010.31, 19,515.39 and 3,149.58 is: 4,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.31 : 19,515.39 = 3,149.58 : x
  2. Step 2: Convert to fraction form
    13,010.31/19,515.39 = 3,149.58/x
  3. Step 3: Cross multiply
    13,010.31x = 19,515.39 × 3,149.58
  4. Step 4: Simplify right side
    13,010.31x = 61,465,282.04
  5. Step 5: Solve for x
    x = 61,465,282.04/13,010.31
  6. Step 6: Final answer
    x = 4,724.35

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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.