Home / 18,738.06-28,107.48-7,637.07

Finding the Fourth Proportional to 18,738.06, 28,107.48 and 7,637.07

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Solution

The fourth proportional to 18,738.06, 28,107.48 and 7,637.07 is: 11,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.06 : 28,107.48 = 7,637.07 : x
  2. Step 2: Convert to fraction form
    18,738.06/28,107.48 = 7,637.07/x
  3. Step 3: Cross multiply
    18,738.06x = 28,107.48 × 7,637.07
  4. Step 4: Simplify right side
    18,738.06x = 214,658,792.28
  5. Step 5: Solve for x
    x = 214,658,792.28/18,738.06
  6. Step 6: Final answer
    x = 11,455.76

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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.