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Finding the Fourth Proportional to 13,279.14, 19,931.03 and 6,709.94

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Solution

The fourth proportional to 13,279.14, 19,931.03 and 6,709.94 is: 10,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.14 : 19,931.03 = 6,709.94 : x
  2. Step 2: Convert to fraction form
    13,279.14/19,931.03 = 6,709.94/x
  3. Step 3: Cross multiply
    13,279.14x = 19,931.03 × 6,709.94
  4. Step 4: Simplify right side
    13,279.14x = 133,735,982.14
  5. Step 5: Solve for x
    x = 133,735,982.14/13,279.14
  6. Step 6: Final answer
    x = 10,071.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.