Home / 17,739.87-24,481.20-9,782.40

Finding the Fourth Proportional to 17,739.87, 24,481.20 and 9,782.40

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Solution

The fourth proportional to 17,739.87, 24,481.20 and 9,782.40 is: 13,499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.87 : 24,481.20 = 9,782.40 : x
  2. Step 2: Convert to fraction form
    17,739.87/24,481.20 = 9,782.40/x
  3. Step 3: Cross multiply
    17,739.87x = 24,481.20 × 9,782.40
  4. Step 4: Simplify right side
    17,739.87x = 239,484,890.88
  5. Step 5: Solve for x
    x = 239,484,890.88/17,739.87
  6. Step 6: Final answer
    x = 13,499.81

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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.