Home / 7,967.81-11,938.42-5,623.97

Finding the Fourth Proportional to 7,967.81, 11,938.42 and 5,623.97

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Solution

The fourth proportional to 7,967.81, 11,938.42 and 5,623.97 is: 8,426.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.81 : 11,938.42 = 5,623.97 : x
  2. Step 2: Convert to fraction form
    7,967.81/11,938.42 = 5,623.97/x
  3. Step 3: Cross multiply
    7,967.81x = 11,938.42 × 5,623.97
  4. Step 4: Simplify right side
    7,967.81x = 67,141,315.93
  5. Step 5: Solve for x
    x = 67,141,315.93/7,967.81
  6. Step 6: Final answer
    x = 8,426.57

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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.