Home / 13,767.03-18,997.86-7,717.79

Finding the Fourth Proportional to 13,767.03, 18,997.86 and 7,717.79

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Solution

The fourth proportional to 13,767.03, 18,997.86 and 7,717.79 is: 10,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.03 : 18,997.86 = 7,717.79 : x
  2. Step 2: Convert to fraction form
    13,767.03/18,997.86 = 7,717.79/x
  3. Step 3: Cross multiply
    13,767.03x = 18,997.86 × 7,717.79
  4. Step 4: Simplify right side
    13,767.03x = 146,621,493.93
  5. Step 5: Solve for x
    x = 146,621,493.93/13,767.03
  6. Step 6: Final answer
    x = 10,650.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.