Home / 13,608.88-18,765.48-11,824.72

Finding the Fourth Proportional to 13,608.88, 18,765.48 and 11,824.72

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Solution

The fourth proportional to 13,608.88, 18,765.48 and 11,824.72 is: 16,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.88 : 18,765.48 = 11,824.72 : x
  2. Step 2: Convert to fraction form
    13,608.88/18,765.48 = 11,824.72/x
  3. Step 3: Cross multiply
    13,608.88x = 18,765.48 × 11,824.72
  4. Step 4: Simplify right side
    13,608.88x = 221,896,546.67
  5. Step 5: Solve for x
    x = 221,896,546.67/13,608.88
  6. Step 6: Final answer
    x = 16,305.28

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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.