Home / 15,233.69-21,021.62-8,427.31

Finding the Fourth Proportional to 15,233.69, 21,021.62 and 8,427.31

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Solution

The fourth proportional to 15,233.69, 21,021.62 and 8,427.31 is: 11,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.69 : 21,021.62 = 8,427.31 : x
  2. Step 2: Convert to fraction form
    15,233.69/21,021.62 = 8,427.31/x
  3. Step 3: Cross multiply
    15,233.69x = 21,021.62 × 8,427.31
  4. Step 4: Simplify right side
    15,233.69x = 177,155,603.33
  5. Step 5: Solve for x
    x = 177,155,603.33/15,233.69
  6. Step 6: Final answer
    x = 11,629.20

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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.