Home / 18,605.36-27,911.06-6,121.76

Finding the Fourth Proportional to 18,605.36, 27,911.06 and 6,121.76

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Solution

The fourth proportional to 18,605.36, 27,911.06 and 6,121.76 is: 9,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.36 : 27,911.06 = 6,121.76 : x
  2. Step 2: Convert to fraction form
    18,605.36/27,911.06 = 6,121.76/x
  3. Step 3: Cross multiply
    18,605.36x = 27,911.06 × 6,121.76
  4. Step 4: Simplify right side
    18,605.36x = 170,864,810.67
  5. Step 5: Solve for x
    x = 170,864,810.67/18,605.36
  6. Step 6: Final answer
    x = 9,183.63

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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.