Home / 11,256.86-15,529.78-6,778.37

Finding the Fourth Proportional to 11,256.86, 15,529.78 and 6,778.37

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Solution

The fourth proportional to 11,256.86, 15,529.78 and 6,778.37 is: 9,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.86 : 15,529.78 = 6,778.37 : x
  2. Step 2: Convert to fraction form
    11,256.86/15,529.78 = 6,778.37/x
  3. Step 3: Cross multiply
    11,256.86x = 15,529.78 × 6,778.37
  4. Step 4: Simplify right side
    11,256.86x = 105,266,594.86
  5. Step 5: Solve for x
    x = 105,266,594.86/11,256.86
  6. Step 6: Final answer
    x = 9,351.33

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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.