Home / 7,787.22-10,727.55-6,664.56

Finding the Fourth Proportional to 7,787.22, 10,727.55 and 6,664.56

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Solution

The fourth proportional to 7,787.22, 10,727.55 and 6,664.56 is: 9,180.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.22 : 10,727.55 = 6,664.56 : x
  2. Step 2: Convert to fraction form
    7,787.22/10,727.55 = 6,664.56/x
  3. Step 3: Cross multiply
    7,787.22x = 10,727.55 × 6,664.56
  4. Step 4: Simplify right side
    7,787.22x = 71,494,400.63
  5. Step 5: Solve for x
    x = 71,494,400.63/7,787.22
  6. Step 6: Final answer
    x = 9,180.99

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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.