Home / 8,479.62-11,702.31-5,122.37

Finding the Fourth Proportional to 8,479.62, 11,702.31 and 5,122.37

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Solution

The fourth proportional to 8,479.62, 11,702.31 and 5,122.37 is: 7,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.62 : 11,702.31 = 5,122.37 : x
  2. Step 2: Convert to fraction form
    8,479.62/11,702.31 = 5,122.37/x
  3. Step 3: Cross multiply
    8,479.62x = 11,702.31 × 5,122.37
  4. Step 4: Simplify right side
    8,479.62x = 59,943,571.72
  5. Step 5: Solve for x
    x = 59,943,571.72/8,479.62
  6. Step 6: Final answer
    x = 7,069.13

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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.