Home / 7,989.23-11,021.89-5,301.72

Finding the Fourth Proportional to 7,989.23, 11,021.89 and 5,301.72

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Solution

The fourth proportional to 7,989.23, 11,021.89 and 5,301.72 is: 7,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.23 : 11,021.89 = 5,301.72 : x
  2. Step 2: Convert to fraction form
    7,989.23/11,021.89 = 5,301.72/x
  3. Step 3: Cross multiply
    7,989.23x = 11,021.89 × 5,301.72
  4. Step 4: Simplify right side
    7,989.23x = 58,434,919.54
  5. Step 5: Solve for x
    x = 58,434,919.54/7,989.23
  6. Step 6: Final answer
    x = 7,314.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.