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Finding the Fourth Proportional to 19,605.79, 29,392.15 and 8,504.12

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Solution

The fourth proportional to 19,605.79, 29,392.15 and 8,504.12 is: 12,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.79 : 29,392.15 = 8,504.12 : x
  2. Step 2: Convert to fraction form
    19,605.79/29,392.15 = 8,504.12/x
  3. Step 3: Cross multiply
    19,605.79x = 29,392.15 × 8,504.12
  4. Step 4: Simplify right side
    19,605.79x = 249,954,202.44
  5. Step 5: Solve for x
    x = 249,954,202.44/19,605.79
  6. Step 6: Final answer
    x = 12,749.00

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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.