Home / 18,621.42-25,699.14-10,239.54

Finding the Fourth Proportional to 18,621.42, 25,699.14 and 10,239.54

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Solution

The fourth proportional to 18,621.42, 25,699.14 and 10,239.54 is: 14,131.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.42 : 25,699.14 = 10,239.54 : x
  2. Step 2: Convert to fraction form
    18,621.42/25,699.14 = 10,239.54/x
  3. Step 3: Cross multiply
    18,621.42x = 25,699.14 × 10,239.54
  4. Step 4: Simplify right side
    18,621.42x = 263,147,372.00
  5. Step 5: Solve for x
    x = 263,147,372.00/18,621.42
  6. Step 6: Final answer
    x = 14,131.43

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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.