Home / 13,971.69-20,928.78-7,383.96

Finding the Fourth Proportional to 13,971.69, 20,928.78 and 7,383.96

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Solution

The fourth proportional to 13,971.69, 20,928.78 and 7,383.96 is: 11,060.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.69 : 20,928.78 = 7,383.96 : x
  2. Step 2: Convert to fraction form
    13,971.69/20,928.78 = 7,383.96/x
  3. Step 3: Cross multiply
    13,971.69x = 20,928.78 × 7,383.96
  4. Step 4: Simplify right side
    13,971.69x = 154,537,274.37
  5. Step 5: Solve for x
    x = 154,537,274.37/13,971.69
  6. Step 6: Final answer
    x = 11,060.74

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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.