Home / 19,882.69-27,438.83-11,386.33

Finding the Fourth Proportional to 19,882.69, 27,438.83 and 11,386.33

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Solution

The fourth proportional to 19,882.69, 27,438.83 and 11,386.33 is: 15,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.69 : 27,438.83 = 11,386.33 : x
  2. Step 2: Convert to fraction form
    19,882.69/27,438.83 = 11,386.33/x
  3. Step 3: Cross multiply
    19,882.69x = 27,438.83 × 11,386.33
  4. Step 4: Simplify right side
    19,882.69x = 312,427,490.36
  5. Step 5: Solve for x
    x = 312,427,490.36/19,882.69
  6. Step 6: Final answer
    x = 15,713.54

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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.