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Finding the Fourth Proportional to 11,272.74, 15,559.98 and 7,916.37

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Solution

The fourth proportional to 11,272.74, 15,559.98 and 7,916.37 is: 10,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.74 : 15,559.98 = 7,916.37 : x
  2. Step 2: Convert to fraction form
    11,272.74/15,559.98 = 7,916.37/x
  3. Step 3: Cross multiply
    11,272.74x = 15,559.98 × 7,916.37
  4. Step 4: Simplify right side
    11,272.74x = 123,178,558.87
  5. Step 5: Solve for x
    x = 123,178,558.87/11,272.74
  6. Step 6: Final answer
    x = 10,927.12

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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.