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Finding the Fourth Proportional to 9,333.95, 12,881.12 and 5,355.77

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Solution

The fourth proportional to 9,333.95, 12,881.12 and 5,355.77 is: 7,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333.95 : 12,881.12 = 5,355.77 : x
  2. Step 2: Convert to fraction form
    9,333.95/12,881.12 = 5,355.77/x
  3. Step 3: Cross multiply
    9,333.95x = 12,881.12 × 5,355.77
  4. Step 4: Simplify right side
    9,333.95x = 68,988,224.88
  5. Step 5: Solve for x
    x = 68,988,224.88/9,333.95
  6. Step 6: Final answer
    x = 7,391.11

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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.