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Finding the Fourth Proportional to 18,922.18, 26,112.61 and 10,969.02

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Solution

The fourth proportional to 18,922.18, 26,112.61 and 10,969.02 is: 15,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.18 : 26,112.61 = 10,969.02 : x
  2. Step 2: Convert to fraction form
    18,922.18/26,112.61 = 10,969.02/x
  3. Step 3: Cross multiply
    18,922.18x = 26,112.61 × 10,969.02
  4. Step 4: Simplify right side
    18,922.18x = 286,429,741.34
  5. Step 5: Solve for x
    x = 286,429,741.34/18,922.18
  6. Step 6: Final answer
    x = 15,137.25

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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.