Home / 8,525.26-12,787.08-2,978.65

Finding the Fourth Proportional to 8,525.26, 12,787.08 and 2,978.65

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Solution

The fourth proportional to 8,525.26, 12,787.08 and 2,978.65 is: 4,467.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.26 : 12,787.08 = 2,978.65 : x
  2. Step 2: Convert to fraction form
    8,525.26/12,787.08 = 2,978.65/x
  3. Step 3: Cross multiply
    8,525.26x = 12,787.08 × 2,978.65
  4. Step 4: Simplify right side
    8,525.26x = 38,088,235.84
  5. Step 5: Solve for x
    x = 38,088,235.84/8,525.26
  6. Step 6: Final answer
    x = 4,467.69

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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.