Home / 13,912.47-19,199.70-7,624.85

Finding the Fourth Proportional to 13,912.47, 19,199.70 and 7,624.85

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Solution

The fourth proportional to 13,912.47, 19,199.70 and 7,624.85 is: 10,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.47 : 19,199.70 = 7,624.85 : x
  2. Step 2: Convert to fraction form
    13,912.47/19,199.70 = 7,624.85/x
  3. Step 3: Cross multiply
    13,912.47x = 19,199.70 × 7,624.85
  4. Step 4: Simplify right side
    13,912.47x = 146,394,736.55
  5. Step 5: Solve for x
    x = 146,394,736.55/13,912.47
  6. Step 6: Final answer
    x = 10,522.56

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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.