Home / 13,216.19-18,237.92-7,247.75

Finding the Fourth Proportional to 13,216.19, 18,237.92 and 7,247.75

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Solution

The fourth proportional to 13,216.19, 18,237.92 and 7,247.75 is: 10,001.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.19 : 18,237.92 = 7,247.75 : x
  2. Step 2: Convert to fraction form
    13,216.19/18,237.92 = 7,247.75/x
  3. Step 3: Cross multiply
    13,216.19x = 18,237.92 × 7,247.75
  4. Step 4: Simplify right side
    13,216.19x = 132,183,757.25
  5. Step 5: Solve for x
    x = 132,183,757.25/13,216.19
  6. Step 6: Final answer
    x = 10,001.66

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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.