Home / 7,787.52-11,679.84-3,342.24

Finding the Fourth Proportional to 7,787.52, 11,679.84 and 3,342.24

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Solution

The fourth proportional to 7,787.52, 11,679.84 and 3,342.24 is: 5,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.52 : 11,679.84 = 3,342.24 : x
  2. Step 2: Convert to fraction form
    7,787.52/11,679.84 = 3,342.24/x
  3. Step 3: Cross multiply
    7,787.52x = 11,679.84 × 3,342.24
  4. Step 4: Simplify right side
    7,787.52x = 39,036,828.44
  5. Step 5: Solve for x
    x = 39,036,828.44/7,787.52
  6. Step 6: Final answer
    x = 5,012.74

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1.5x scale

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.