Home / 18,111.99-27,161.16-7,582.74

Finding the Fourth Proportional to 18,111.99, 27,161.16 and 7,582.74

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Solution

The fourth proportional to 18,111.99, 27,161.16 and 7,582.74 is: 11,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.99 : 27,161.16 = 7,582.74 : x
  2. Step 2: Convert to fraction form
    18,111.99/27,161.16 = 7,582.74/x
  3. Step 3: Cross multiply
    18,111.99x = 27,161.16 × 7,582.74
  4. Step 4: Simplify right side
    18,111.99x = 205,956,033.34
  5. Step 5: Solve for x
    x = 205,956,033.34/18,111.99
  6. Step 6: Final answer
    x = 11,371.25

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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.