Home / 13,216.09-18,238.46-7,247.41

Finding the Fourth Proportional to 13,216.09, 18,238.46 and 7,247.41

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Solution

The fourth proportional to 13,216.09, 18,238.46 and 7,247.41 is: 10,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.09 : 18,238.46 = 7,247.41 : x
  2. Step 2: Convert to fraction form
    13,216.09/18,238.46 = 7,247.41/x
  3. Step 3: Cross multiply
    13,216.09x = 18,238.46 × 7,247.41
  4. Step 4: Simplify right side
    13,216.09x = 132,181,469.96
  5. Step 5: Solve for x
    x = 132,181,469.96/13,216.09
  6. Step 6: Final answer
    x = 10,001.56

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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.