Home / 18,351.08-27,519.64-7,814.48

Finding the Fourth Proportional to 18,351.08, 27,519.64 and 7,814.48

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Solution

The fourth proportional to 18,351.08, 27,519.64 and 7,814.48 is: 11,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.08 : 27,519.64 = 7,814.48 : x
  2. Step 2: Convert to fraction form
    18,351.08/27,519.64 = 7,814.48/x
  3. Step 3: Cross multiply
    18,351.08x = 27,519.64 × 7,814.48
  4. Step 4: Simplify right side
    18,351.08x = 215,051,676.39
  5. Step 5: Solve for x
    x = 215,051,676.39/18,351.08
  6. Step 6: Final answer
    x = 11,718.75

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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.