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Finding the Fourth Proportional to 14,716.51, 20,288.91 and 9,992.59

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Solution

The fourth proportional to 14,716.51, 20,288.91 and 9,992.59 is: 13,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,716.51 : 20,288.91 = 9,992.59 : x
  2. Step 2: Convert to fraction form
    14,716.51/20,288.91 = 9,992.59/x
  3. Step 3: Cross multiply
    14,716.51x = 20,288.91 × 9,992.59
  4. Step 4: Simplify right side
    14,716.51x = 202,738,759.18
  5. Step 5: Solve for x
    x = 202,738,759.18/14,716.51
  6. Step 6: Final answer
    x = 13,776.28

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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.