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Finding the Fourth Proportional to 14,302.92, 19,738.07 and 7,930.55

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Solution

The fourth proportional to 14,302.92, 19,738.07 and 7,930.55 is: 10,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,302.92 : 19,738.07 = 7,930.55 : x
  2. Step 2: Convert to fraction form
    14,302.92/19,738.07 = 7,930.55/x
  3. Step 3: Cross multiply
    14,302.92x = 19,738.07 × 7,930.55
  4. Step 4: Simplify right side
    14,302.92x = 156,533,751.04
  5. Step 5: Solve for x
    x = 156,533,751.04/14,302.92
  6. Step 6: Final answer
    x = 10,944.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.