Home / 13,616.23-18,783.62-11,821.27

Finding the Fourth Proportional to 13,616.23, 18,783.62 and 11,821.27

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Solution

The fourth proportional to 13,616.23, 18,783.62 and 11,821.27 is: 16,307.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.23 : 18,783.62 = 11,821.27 : x
  2. Step 2: Convert to fraction form
    13,616.23/18,783.62 = 11,821.27/x
  3. Step 3: Cross multiply
    13,616.23x = 18,783.62 × 11,821.27
  4. Step 4: Simplify right side
    13,616.23x = 222,046,243.60
  5. Step 5: Solve for x
    x = 222,046,243.60/13,616.23
  6. Step 6: Final answer
    x = 16,307.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.