Home / 7,787.44-10,743.24-5,657.86

Finding the Fourth Proportional to 7,787.44, 10,743.24 and 5,657.86

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Solution

The fourth proportional to 7,787.44, 10,743.24 and 5,657.86 is: 7,805.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.44 : 10,743.24 = 5,657.86 : x
  2. Step 2: Convert to fraction form
    7,787.44/10,743.24 = 5,657.86/x
  3. Step 3: Cross multiply
    7,787.44x = 10,743.24 × 5,657.86
  4. Step 4: Simplify right side
    7,787.44x = 60,783,747.87
  5. Step 5: Solve for x
    x = 60,783,747.87/7,787.44
  6. Step 6: Final answer
    x = 7,805.36

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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.