Home / 10,586.55-15,881.89-3,190.65

Finding the Fourth Proportional to 10,586.55, 15,881.89 and 3,190.65

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Solution

The fourth proportional to 10,586.55, 15,881.89 and 3,190.65 is: 4,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,586.55 : 15,881.89 = 3,190.65 : x
  2. Step 2: Convert to fraction form
    10,586.55/15,881.89 = 3,190.65/x
  3. Step 3: Cross multiply
    10,586.55x = 15,881.89 × 3,190.65
  4. Step 4: Simplify right side
    10,586.55x = 50,673,552.33
  5. Step 5: Solve for x
    x = 50,673,552.33/10,586.55
  6. Step 6: Final answer
    x = 4,786.60

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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.