Home / 7,787.42-11,684.56-4,088.79

Finding the Fourth Proportional to 7,787.42, 11,684.56 and 4,088.79

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Solution

The fourth proportional to 7,787.42, 11,684.56 and 4,088.79 is: 6,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.42 : 11,684.56 = 4,088.79 : x
  2. Step 2: Convert to fraction form
    7,787.42/11,684.56 = 4,088.79/x
  3. Step 3: Cross multiply
    7,787.42x = 11,684.56 × 4,088.79
  4. Step 4: Simplify right side
    7,787.42x = 47,775,712.08
  5. Step 5: Solve for x
    x = 47,775,712.08/7,787.42
  6. Step 6: Final answer
    x = 6,134.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.