Home / 13,971.72-20,957.59-3,583.47

Finding the Fourth Proportional to 13,971.72, 20,957.59 and 3,583.47

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Solution

The fourth proportional to 13,971.72, 20,957.59 and 3,583.47 is: 5,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.72 : 20,957.59 = 3,583.47 : x
  2. Step 2: Convert to fraction form
    13,971.72/20,957.59 = 3,583.47/x
  3. Step 3: Cross multiply
    13,971.72x = 20,957.59 × 3,583.47
  4. Step 4: Simplify right side
    13,971.72x = 75,100,978.11
  5. Step 5: Solve for x
    x = 75,100,978.11/13,971.72
  6. Step 6: Final answer
    x = 5,375.21

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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.