Home / 7,868.70-11,786.06-3,702.47

Finding the Fourth Proportional to 7,868.70, 11,786.06 and 3,702.47

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Solution

The fourth proportional to 7,868.70, 11,786.06 and 3,702.47 is: 5,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.70 : 11,786.06 = 3,702.47 : x
  2. Step 2: Convert to fraction form
    7,868.70/11,786.06 = 3,702.47/x
  3. Step 3: Cross multiply
    7,868.70x = 11,786.06 × 3,702.47
  4. Step 4: Simplify right side
    7,868.70x = 43,637,474.64
  5. Step 5: Solve for x
    x = 43,637,474.64/7,868.70
  6. Step 6: Final answer
    x = 5,545.70

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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.