Home / 13,318.14-19,970.09-3,956.84

Finding the Fourth Proportional to 13,318.14, 19,970.09 and 3,956.84

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Solution

The fourth proportional to 13,318.14, 19,970.09 and 3,956.84 is: 5,933.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.14 : 19,970.09 = 3,956.84 : x
  2. Step 2: Convert to fraction form
    13,318.14/19,970.09 = 3,956.84/x
  3. Step 3: Cross multiply
    13,318.14x = 19,970.09 × 3,956.84
  4. Step 4: Simplify right side
    13,318.14x = 79,018,450.92
  5. Step 5: Solve for x
    x = 79,018,450.92/13,318.14
  6. Step 6: Final answer
    x = 5,933.14

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1.5x scale

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.