Home / 15,233.69-21,021.05-8,518.38

Finding the Fourth Proportional to 15,233.69, 21,021.05 and 8,518.38

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Solution

The fourth proportional to 15,233.69, 21,021.05 and 8,518.38 is: 11,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.69 : 21,021.05 = 8,518.38 : x
  2. Step 2: Convert to fraction form
    15,233.69/21,021.05 = 8,518.38/x
  3. Step 3: Cross multiply
    15,233.69x = 21,021.05 × 8,518.38
  4. Step 4: Simplify right side
    15,233.69x = 179,065,249.31
  5. Step 5: Solve for x
    x = 179,065,249.31/15,233.69
  6. Step 6: Final answer
    x = 11,754.56

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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.