Home / 12,842.21-19,219.55-10,764.56

Finding the Fourth Proportional to 12,842.21, 19,219.55 and 10,764.56

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Solution

The fourth proportional to 12,842.21, 19,219.55 and 10,764.56 is: 16,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.21 : 19,219.55 = 10,764.56 : x
  2. Step 2: Convert to fraction form
    12,842.21/19,219.55 = 10,764.56/x
  3. Step 3: Cross multiply
    12,842.21x = 19,219.55 × 10,764.56
  4. Step 4: Simplify right side
    12,842.21x = 206,889,993.37
  5. Step 5: Solve for x
    x = 206,889,993.37/12,842.21
  6. Step 6: Final answer
    x = 16,110.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.