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Finding the Fourth Proportional to 9,993.06, 13,787.89 and 7,335.86

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Solution

The fourth proportional to 9,993.06, 13,787.89 and 7,335.86 is: 10,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.06 : 13,787.89 = 7,335.86 : x
  2. Step 2: Convert to fraction form
    9,993.06/13,787.89 = 7,335.86/x
  3. Step 3: Cross multiply
    9,993.06x = 13,787.89 × 7,335.86
  4. Step 4: Simplify right side
    9,993.06x = 101,145,943.46
  5. Step 5: Solve for x
    x = 101,145,943.46/9,993.06
  6. Step 6: Final answer
    x = 10,121.62

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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.