Home / 18,266.49-27,401.34-5,118.87

Finding the Fourth Proportional to 18,266.49, 27,401.34 and 5,118.87

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Solution

The fourth proportional to 18,266.49, 27,401.34 and 5,118.87 is: 7,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.49 : 27,401.34 = 5,118.87 : x
  2. Step 2: Convert to fraction form
    18,266.49/27,401.34 = 5,118.87/x
  3. Step 3: Cross multiply
    18,266.49x = 27,401.34 × 5,118.87
  4. Step 4: Simplify right side
    18,266.49x = 140,263,897.29
  5. Step 5: Solve for x
    x = 140,263,897.29/18,266.49
  6. Step 6: Final answer
    x = 7,678.75

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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.