Home / 13,318.20-19,970.33-3,956.94

Finding the Fourth Proportional to 13,318.20, 19,970.33 and 3,956.94

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Solution

The fourth proportional to 13,318.20, 19,970.33 and 3,956.94 is: 5,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.20 : 19,970.33 = 3,956.94 : x
  2. Step 2: Convert to fraction form
    13,318.20/19,970.33 = 3,956.94/x
  3. Step 3: Cross multiply
    13,318.20x = 19,970.33 × 3,956.94
  4. Step 4: Simplify right side
    13,318.20x = 79,021,377.81
  5. Step 5: Solve for x
    x = 79,021,377.81/13,318.20
  6. Step 6: Final answer
    x = 5,933.34

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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.