Home / 13,771.36-20,542.33-12,442.60

Finding the Fourth Proportional to 13,771.36, 20,542.33 and 12,442.60

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Solution

The fourth proportional to 13,771.36, 20,542.33 and 12,442.60 is: 18,560.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.36 : 20,542.33 = 12,442.60 : x
  2. Step 2: Convert to fraction form
    13,771.36/20,542.33 = 12,442.60/x
  3. Step 3: Cross multiply
    13,771.36x = 20,542.33 × 12,442.60
  4. Step 4: Simplify right side
    13,771.36x = 255,599,995.26
  5. Step 5: Solve for x
    x = 255,599,995.26/13,771.36
  6. Step 6: Final answer
    x = 18,560.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.