Home / 18,739.96-25,861.17-10,782.03

Finding the Fourth Proportional to 18,739.96, 25,861.17 and 10,782.03

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Solution

The fourth proportional to 18,739.96, 25,861.17 and 10,782.03 is: 14,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.96 : 25,861.17 = 10,782.03 : x
  2. Step 2: Convert to fraction form
    18,739.96/25,861.17 = 10,782.03/x
  3. Step 3: Cross multiply
    18,739.96x = 25,861.17 × 10,782.03
  4. Step 4: Simplify right side
    18,739.96x = 278,835,781.47
  5. Step 5: Solve for x
    x = 278,835,781.47/18,739.96
  6. Step 6: Final answer
    x = 14,879.21

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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.