Home / 7,815.06-11,723.50-3,136.70

Finding the Fourth Proportional to 7,815.06, 11,723.50 and 3,136.70

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Solution

The fourth proportional to 7,815.06, 11,723.50 and 3,136.70 is: 4,705.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.06 : 11,723.50 = 3,136.70 : x
  2. Step 2: Convert to fraction form
    7,815.06/11,723.50 = 3,136.70/x
  3. Step 3: Cross multiply
    7,815.06x = 11,723.50 × 3,136.70
  4. Step 4: Simplify right side
    7,815.06x = 36,773,102.45
  5. Step 5: Solve for x
    x = 36,773,102.45/7,815.06
  6. Step 6: Final answer
    x = 4,705.42

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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.