Home / 13,621.40-18,796.38-7,652.60

Finding the Fourth Proportional to 13,621.40, 18,796.38 and 7,652.60

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Solution

The fourth proportional to 13,621.40, 18,796.38 and 7,652.60 is: 10,559.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.40 : 18,796.38 = 7,652.60 : x
  2. Step 2: Convert to fraction form
    13,621.40/18,796.38 = 7,652.60/x
  3. Step 3: Cross multiply
    13,621.40x = 18,796.38 × 7,652.60
  4. Step 4: Simplify right side
    13,621.40x = 143,841,177.59
  5. Step 5: Solve for x
    x = 143,841,177.59/13,621.40
  6. Step 6: Final answer
    x = 10,559.94

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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.