Home / 11,178.89-16,768.34-2,858.93

Finding the Fourth Proportional to 11,178.89, 16,768.34 and 2,858.93

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Solution

The fourth proportional to 11,178.89, 16,768.34 and 2,858.93 is: 4,288.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.89 : 16,768.34 = 2,858.93 : x
  2. Step 2: Convert to fraction form
    11,178.89/16,768.34 = 2,858.93/x
  3. Step 3: Cross multiply
    11,178.89x = 16,768.34 × 2,858.93
  4. Step 4: Simplify right side
    11,178.89x = 47,939,485.74
  5. Step 5: Solve for x
    x = 47,939,485.74/11,178.89
  6. Step 6: Final answer
    x = 4,288.39

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1.5x scale

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.