Home / 9,178.93-13,768.11-2,939.32

Finding the Fourth Proportional to 9,178.93, 13,768.11 and 2,939.32

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Solution

The fourth proportional to 9,178.93, 13,768.11 and 2,939.32 is: 4,408.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.93 : 13,768.11 = 2,939.32 : x
  2. Step 2: Convert to fraction form
    9,178.93/13,768.11 = 2,939.32/x
  3. Step 3: Cross multiply
    9,178.93x = 13,768.11 × 2,939.32
  4. Step 4: Simplify right side
    9,178.93x = 40,468,881.09
  5. Step 5: Solve for x
    x = 40,468,881.09/9,178.93
  6. Step 6: Final answer
    x = 4,408.89

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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.