Home / 13,621.02-18,791.56-8,583.90

Finding the Fourth Proportional to 13,621.02, 18,791.56 and 8,583.90

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Solution

The fourth proportional to 13,621.02, 18,791.56 and 8,583.90 is: 11,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.02 : 18,791.56 = 8,583.90 : x
  2. Step 2: Convert to fraction form
    13,621.02/18,791.56 = 8,583.90/x
  3. Step 3: Cross multiply
    13,621.02x = 18,791.56 × 8,583.90
  4. Step 4: Simplify right side
    13,621.02x = 161,304,735.01
  5. Step 5: Solve for x
    x = 161,304,735.01/13,621.02
  6. Step 6: Final answer
    x = 11,842.34

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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.