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Finding the Fourth Proportional to 16,955.16, 23,400.53 and 9,403.17

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Solution

The fourth proportional to 16,955.16, 23,400.53 and 9,403.17 is: 12,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.16 : 23,400.53 = 9,403.17 : x
  2. Step 2: Convert to fraction form
    16,955.16/23,400.53 = 9,403.17/x
  3. Step 3: Cross multiply
    16,955.16x = 23,400.53 × 9,403.17
  4. Step 4: Simplify right side
    16,955.16x = 220,039,161.68
  5. Step 5: Solve for x
    x = 220,039,161.68/16,955.16
  6. Step 6: Final answer
    x = 12,977.71

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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.