Home / 9,420.39-14,133.67-3,876.35

Finding the Fourth Proportional to 9,420.39, 14,133.67 and 3,876.35

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Solution

The fourth proportional to 9,420.39, 14,133.67 and 3,876.35 is: 5,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.39 : 14,133.67 = 3,876.35 : x
  2. Step 2: Convert to fraction form
    9,420.39/14,133.67 = 3,876.35/x
  3. Step 3: Cross multiply
    9,420.39x = 14,133.67 × 3,876.35
  4. Step 4: Simplify right side
    9,420.39x = 54,786,971.35
  5. Step 5: Solve for x
    x = 54,786,971.35/9,420.39
  6. Step 6: Final answer
    x = 5,815.79

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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.