Home / 13,297.09-18,343.24-10,147.81

Finding the Fourth Proportional to 13,297.09, 18,343.24 and 10,147.81

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Solution

The fourth proportional to 13,297.09, 18,343.24 and 10,147.81 is: 13,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.09 : 18,343.24 = 10,147.81 : x
  2. Step 2: Convert to fraction form
    13,297.09/18,343.24 = 10,147.81/x
  3. Step 3: Cross multiply
    13,297.09x = 18,343.24 × 10,147.81
  4. Step 4: Simplify right side
    13,297.09x = 186,143,714.30
  5. Step 5: Solve for x
    x = 186,143,714.30/13,297.09
  6. Step 6: Final answer
    x = 13,998.83

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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.