Home / 13,148.11-19,728.31-5,751.61

Finding the Fourth Proportional to 13,148.11, 19,728.31 and 5,751.61

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Solution

The fourth proportional to 13,148.11, 19,728.31 and 5,751.61 is: 8,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.11 : 19,728.31 = 5,751.61 : x
  2. Step 2: Convert to fraction form
    13,148.11/19,728.31 = 5,751.61/x
  3. Step 3: Cross multiply
    13,148.11x = 19,728.31 × 5,751.61
  4. Step 4: Simplify right side
    13,148.11x = 113,469,545.08
  5. Step 5: Solve for x
    x = 113,469,545.08/13,148.11
  6. Step 6: Final answer
    x = 8,630.10

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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.