Home / 7,816.82-10,787.21-4,280.03

Finding the Fourth Proportional to 7,816.82, 10,787.21 and 4,280.03

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Solution

The fourth proportional to 7,816.82, 10,787.21 and 4,280.03 is: 5,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.82 : 10,787.21 = 4,280.03 : x
  2. Step 2: Convert to fraction form
    7,816.82/10,787.21 = 4,280.03/x
  3. Step 3: Cross multiply
    7,816.82x = 10,787.21 × 4,280.03
  4. Step 4: Simplify right side
    7,816.82x = 46,169,539.38
  5. Step 5: Solve for x
    x = 46,169,539.38/7,816.82
  6. Step 6: Final answer
    x = 5,906.44

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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.