Home / 12,746.88-19,121.04-5,351.67

Finding the Fourth Proportional to 12,746.88, 19,121.04 and 5,351.67

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Solution

The fourth proportional to 12,746.88, 19,121.04 and 5,351.67 is: 8,027.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.88 : 19,121.04 = 5,351.67 : x
  2. Step 2: Convert to fraction form
    12,746.88/19,121.04 = 5,351.67/x
  3. Step 3: Cross multiply
    12,746.88x = 19,121.04 × 5,351.67
  4. Step 4: Simplify right side
    12,746.88x = 102,329,496.14
  5. Step 5: Solve for x
    x = 102,329,496.14/12,746.88
  6. Step 6: Final answer
    x = 8,027.81

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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.