Home / 18,259.03-27,389.23-5,111.06

Finding the Fourth Proportional to 18,259.03, 27,389.23 and 5,111.06

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Solution

The fourth proportional to 18,259.03, 27,389.23 and 5,111.06 is: 7,666.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.03 : 27,389.23 = 5,111.06 : x
  2. Step 2: Convert to fraction form
    18,259.03/27,389.23 = 5,111.06/x
  3. Step 3: Cross multiply
    18,259.03x = 27,389.23 × 5,111.06
  4. Step 4: Simplify right side
    18,259.03x = 139,987,997.88
  5. Step 5: Solve for x
    x = 139,987,997.88/18,259.03
  6. Step 6: Final answer
    x = 7,666.78

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1.5x scale

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.