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Finding the Fourth Proportional to 15,196.95, 20,972.56 and 8,482.63

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Solution

The fourth proportional to 15,196.95, 20,972.56 and 8,482.63 is: 11,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196.95 : 20,972.56 = 8,482.63 : x
  2. Step 2: Convert to fraction form
    15,196.95/20,972.56 = 8,482.63/x
  3. Step 3: Cross multiply
    15,196.95x = 20,972.56 × 8,482.63
  4. Step 4: Simplify right side
    15,196.95x = 177,902,495.28
  5. Step 5: Solve for x
    x = 177,902,495.28/15,196.95
  6. Step 6: Final answer
    x = 11,706.46

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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.