Home / 13,147.63-19,721.61-4,382.54

Finding the Fourth Proportional to 13,147.63, 19,721.61 and 4,382.54

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Solution

The fourth proportional to 13,147.63, 19,721.61 and 4,382.54 is: 6,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.63 : 19,721.61 = 4,382.54 : x
  2. Step 2: Convert to fraction form
    13,147.63/19,721.61 = 4,382.54/x
  3. Step 3: Cross multiply
    13,147.63x = 19,721.61 × 4,382.54
  4. Step 4: Simplify right side
    13,147.63x = 86,430,821.73
  5. Step 5: Solve for x
    x = 86,430,821.73/13,147.63
  6. Step 6: Final answer
    x = 6,573.87

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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.