Home / 12,722.40-19,087.92-4,932

Finding the Fourth Proportional to 12,722.40, 19,087.92 and 4,932

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Solution

The fourth proportional to 12,722.40, 19,087.92 and 4,932 is: 7,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.40 : 19,087.92 = 4,932 : x
  2. Step 2: Convert to fraction form
    12,722.40/19,087.92 = 4,932/x
  3. Step 3: Cross multiply
    12,722.40x = 19,087.92 × 4,932
  4. Step 4: Simplify right side
    12,722.40x = 94,141,621.44
  5. Step 5: Solve for x
    x = 94,141,621.44/12,722.40
  6. Step 6: Final answer
    x = 7,399.67

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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.