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Finding the Fourth Proportional to 9,350.73, 12,902.86 and 7,940.11

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Solution

The fourth proportional to 9,350.73, 12,902.86 and 7,940.11 is: 10,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,350.73 : 12,902.86 = 7,940.11 : x
  2. Step 2: Convert to fraction form
    9,350.73/12,902.86 = 7,940.11/x
  3. Step 3: Cross multiply
    9,350.73x = 12,902.86 × 7,940.11
  4. Step 4: Simplify right side
    9,350.73x = 102,450,127.71
  5. Step 5: Solve for x
    x = 102,450,127.71/9,350.73
  6. Step 6: Final answer
    x = 10,956.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.