Home / 18,322.21-27,488.31-7,786.54

Finding the Fourth Proportional to 18,322.21, 27,488.31 and 7,786.54

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Solution

The fourth proportional to 18,322.21, 27,488.31 and 7,786.54 is: 11,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.21 : 27,488.31 = 7,786.54 : x
  2. Step 2: Convert to fraction form
    18,322.21/27,488.31 = 7,786.54/x
  3. Step 3: Cross multiply
    18,322.21x = 27,488.31 × 7,786.54
  4. Step 4: Simplify right side
    18,322.21x = 214,038,825.35
  5. Step 5: Solve for x
    x = 214,038,825.35/18,322.21
  6. Step 6: Final answer
    x = 11,681.93

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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.