Home / 15,450.41-21,321.39-8,736.11

Finding the Fourth Proportional to 15,450.41, 21,321.39 and 8,736.11

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Solution

The fourth proportional to 15,450.41, 21,321.39 and 8,736.11 is: 12,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.41 : 21,321.39 = 8,736.11 : x
  2. Step 2: Convert to fraction form
    15,450.41/21,321.39 = 8,736.11/x
  3. Step 3: Cross multiply
    15,450.41x = 21,321.39 × 8,736.11
  4. Step 4: Simplify right side
    15,450.41x = 186,266,008.39
  5. Step 5: Solve for x
    x = 186,266,008.39/15,450.41
  6. Step 6: Final answer
    x = 12,055.73

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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.