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Finding the Fourth Proportional to 15,061.73, 20,774.85 and 8,774.10

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Solution

The fourth proportional to 15,061.73, 20,774.85 and 8,774.10 is: 12,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,061.73 : 20,774.85 = 8,774.10 : x
  2. Step 2: Convert to fraction form
    15,061.73/20,774.85 = 8,774.10/x
  3. Step 3: Cross multiply
    15,061.73x = 20,774.85 × 8,774.10
  4. Step 4: Simplify right side
    15,061.73x = 182,280,611.39
  5. Step 5: Solve for x
    x = 182,280,611.39/15,061.73
  6. Step 6: Final answer
    x = 12,102.24

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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.