Home / 15,450.14-21,321.23-8,376.51

Finding the Fourth Proportional to 15,450.14, 21,321.23 and 8,376.51

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Solution

The fourth proportional to 15,450.14, 21,321.23 and 8,376.51 is: 11,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.14 : 21,321.23 = 8,376.51 : x
  2. Step 2: Convert to fraction form
    15,450.14/21,321.23 = 8,376.51/x
  3. Step 3: Cross multiply
    15,450.14x = 21,321.23 × 8,376.51
  4. Step 4: Simplify right side
    15,450.14x = 178,597,534.38
  5. Step 5: Solve for x
    x = 178,597,534.38/15,450.14
  6. Step 6: Final answer
    x = 11,559.60

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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.