Home / 13,610.43-18,782.37-7,644.02

Finding the Fourth Proportional to 13,610.43, 18,782.37 and 7,644.02

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Solution

The fourth proportional to 13,610.43, 18,782.37 and 7,644.02 is: 10,548.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.43 : 18,782.37 = 7,644.02 : x
  2. Step 2: Convert to fraction form
    13,610.43/18,782.37 = 7,644.02/x
  3. Step 3: Cross multiply
    13,610.43x = 18,782.37 × 7,644.02
  4. Step 4: Simplify right side
    13,610.43x = 143,572,718.02
  5. Step 5: Solve for x
    x = 143,572,718.02/13,610.43
  6. Step 6: Final answer
    x = 10,548.73

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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.