Home / 19,840.67-27,378.09-11,882.69

Finding the Fourth Proportional to 19,840.67, 27,378.09 and 11,882.69

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Solution

The fourth proportional to 19,840.67, 27,378.09 and 11,882.69 is: 16,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.67 : 27,378.09 = 11,882.69 : x
  2. Step 2: Convert to fraction form
    19,840.67/27,378.09 = 11,882.69/x
  3. Step 3: Cross multiply
    19,840.67x = 27,378.09 × 11,882.69
  4. Step 4: Simplify right side
    19,840.67x = 325,325,219.37
  5. Step 5: Solve for x
    x = 325,325,219.37/19,840.67
  6. Step 6: Final answer
    x = 16,396.89

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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.