Home / 8,623.28-12,938.03-4,243.81

Finding the Fourth Proportional to 8,623.28, 12,938.03 and 4,243.81

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Solution

The fourth proportional to 8,623.28, 12,938.03 and 4,243.81 is: 6,367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.28 : 12,938.03 = 4,243.81 : x
  2. Step 2: Convert to fraction form
    8,623.28/12,938.03 = 4,243.81/x
  3. Step 3: Cross multiply
    8,623.28x = 12,938.03 × 4,243.81
  4. Step 4: Simplify right side
    8,623.28x = 54,906,541.09
  5. Step 5: Solve for x
    x = 54,906,541.09/8,623.28
  6. Step 6: Final answer
    x = 6,367.25

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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.