Home / 15,524.31-21,422.93-8,450.73

Finding the Fourth Proportional to 15,524.31, 21,422.93 and 8,450.73

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Solution

The fourth proportional to 15,524.31, 21,422.93 and 8,450.73 is: 11,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524.31 : 21,422.93 = 8,450.73 : x
  2. Step 2: Convert to fraction form
    15,524.31/21,422.93 = 8,450.73/x
  3. Step 3: Cross multiply
    15,524.31x = 21,422.93 × 8,450.73
  4. Step 4: Simplify right side
    15,524.31x = 181,039,354.99
  5. Step 5: Solve for x
    x = 181,039,354.99/15,524.31
  6. Step 6: Final answer
    x = 11,661.67

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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.