Home / 13,921.41-19,211.99-7,634.37

Finding the Fourth Proportional to 13,921.41, 19,211.99 and 7,634.37

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Solution

The fourth proportional to 13,921.41, 19,211.99 and 7,634.37 is: 10,535.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.41 : 19,211.99 = 7,634.37 : x
  2. Step 2: Convert to fraction form
    13,921.41/19,211.99 = 7,634.37/x
  3. Step 3: Cross multiply
    13,921.41x = 19,211.99 × 7,634.37
  4. Step 4: Simplify right side
    13,921.41x = 146,671,401.92
  5. Step 5: Solve for x
    x = 146,671,401.92/13,921.41
  6. Step 6: Final answer
    x = 10,535.67

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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.