Home / 13,912.12-20,869.47-5,029.67

Finding the Fourth Proportional to 13,912.12, 20,869.47 and 5,029.67

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Solution

The fourth proportional to 13,912.12, 20,869.47 and 5,029.67 is: 7,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.12 : 20,869.47 = 5,029.67 : x
  2. Step 2: Convert to fraction form
    13,912.12/20,869.47 = 5,029.67/x
  3. Step 3: Cross multiply
    13,912.12x = 20,869.47 × 5,029.67
  4. Step 4: Simplify right side
    13,912.12x = 104,966,522.97
  5. Step 5: Solve for x
    x = 104,966,522.97/13,912.12
  6. Step 6: Final answer
    x = 7,544.97

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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.