Home / 15,453.12-21,324.44-8,738.32

Finding the Fourth Proportional to 15,453.12, 21,324.44 and 8,738.32

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Solution

The fourth proportional to 15,453.12, 21,324.44 and 8,738.32 is: 12,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.12 : 21,324.44 = 8,738.32 : x
  2. Step 2: Convert to fraction form
    15,453.12/21,324.44 = 8,738.32/x
  3. Step 3: Cross multiply
    15,453.12x = 21,324.44 × 8,738.32
  4. Step 4: Simplify right side
    15,453.12x = 186,339,780.54
  5. Step 5: Solve for x
    x = 186,339,780.54/15,453.12
  6. Step 6: Final answer
    x = 12,058.39

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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.