Home / 13,921.29-19,212.26-7,633.67

Finding the Fourth Proportional to 13,921.29, 19,212.26 and 7,633.67

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Solution

The fourth proportional to 13,921.29, 19,212.26 and 7,633.67 is: 10,534.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.29 : 19,212.26 = 7,633.67 : x
  2. Step 2: Convert to fraction form
    13,921.29/19,212.26 = 7,633.67/x
  3. Step 3: Cross multiply
    13,921.29x = 19,212.26 × 7,633.67
  4. Step 4: Simplify right side
    13,921.29x = 146,659,918.56
  5. Step 5: Solve for x
    x = 146,659,918.56/13,921.29
  6. Step 6: Final answer
    x = 10,534.94

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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.