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Finding the Fourth Proportional to 14,579.97, 20,126.46 and 9,866.99

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Solution

The fourth proportional to 14,579.97, 20,126.46 and 9,866.99 is: 13,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.97 : 20,126.46 = 9,866.99 : x
  2. Step 2: Convert to fraction form
    14,579.97/20,126.46 = 9,866.99/x
  3. Step 3: Cross multiply
    14,579.97x = 20,126.46 × 9,866.99
  4. Step 4: Simplify right side
    14,579.97x = 198,587,478.92
  5. Step 5: Solve for x
    x = 198,587,478.92/14,579.97
  6. Step 6: Final answer
    x = 13,620.57

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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.