Home / 11,543.99-15,930.70-6,238.80

Finding the Fourth Proportional to 11,543.99, 15,930.70 and 6,238.80

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Solution

The fourth proportional to 11,543.99, 15,930.70 and 6,238.80 is: 8,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,543.99 : 15,930.70 = 6,238.80 : x
  2. Step 2: Convert to fraction form
    11,543.99/15,930.70 = 6,238.80/x
  3. Step 3: Cross multiply
    11,543.99x = 15,930.70 × 6,238.80
  4. Step 4: Simplify right side
    11,543.99x = 99,388,435.56
  5. Step 5: Solve for x
    x = 99,388,435.56/11,543.99
  6. Step 6: Final answer
    x = 8,609.54

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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.