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Finding the Fourth Proportional to 14,219.39, 19,622.68 and 7,845.91

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Solution

The fourth proportional to 14,219.39, 19,622.68 and 7,845.91 is: 10,827.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.39 : 19,622.68 = 7,845.91 : x
  2. Step 2: Convert to fraction form
    14,219.39/19,622.68 = 7,845.91/x
  3. Step 3: Cross multiply
    14,219.39x = 19,622.68 × 7,845.91
  4. Step 4: Simplify right side
    14,219.39x = 153,957,712.57
  5. Step 5: Solve for x
    x = 153,957,712.57/14,219.39
  6. Step 6: Final answer
    x = 10,827.31

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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.