Home / 11,507.26-15,879.36-6,471.68

Finding the Fourth Proportional to 11,507.26, 15,879.36 and 6,471.68

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Solution

The fourth proportional to 11,507.26, 15,879.36 and 6,471.68 is: 8,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.26 : 15,879.36 = 6,471.68 : x
  2. Step 2: Convert to fraction form
    11,507.26/15,879.36 = 6,471.68/x
  3. Step 3: Cross multiply
    11,507.26x = 15,879.36 × 6,471.68
  4. Step 4: Simplify right side
    11,507.26x = 102,766,136.52
  5. Step 5: Solve for x
    x = 102,766,136.52/11,507.26
  6. Step 6: Final answer
    x = 8,930.55

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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.