Home / 13,749.44-20,625.35-4,390.79

Finding the Fourth Proportional to 13,749.44, 20,625.35 and 4,390.79

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Solution

The fourth proportional to 13,749.44, 20,625.35 and 4,390.79 is: 6,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.44 : 20,625.35 = 4,390.79 : x
  2. Step 2: Convert to fraction form
    13,749.44/20,625.35 = 4,390.79/x
  3. Step 3: Cross multiply
    13,749.44x = 20,625.35 × 4,390.79
  4. Step 4: Simplify right side
    13,749.44x = 90,561,455.45
  5. Step 5: Solve for x
    x = 90,561,455.45/13,749.44
  6. Step 6: Final answer
    x = 6,586.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.