Home / 13,739.24-20,601.40-6,238.68

Finding the Fourth Proportional to 13,739.24, 20,601.40 and 6,238.68

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Solution

The fourth proportional to 13,739.24, 20,601.40 and 6,238.68 is: 9,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.24 : 20,601.40 = 6,238.68 : x
  2. Step 2: Convert to fraction form
    13,739.24/20,601.40 = 6,238.68/x
  3. Step 3: Cross multiply
    13,739.24x = 20,601.40 × 6,238.68
  4. Step 4: Simplify right side
    13,739.24x = 128,525,542.15
  5. Step 5: Solve for x
    x = 128,525,542.15/13,739.24
  6. Step 6: Final answer
    x = 9,354.63

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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.