Home / 13,297.26-18,345.74-8,259.69

Finding the Fourth Proportional to 13,297.26, 18,345.74 and 8,259.69

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Solution

The fourth proportional to 13,297.26, 18,345.74 and 8,259.69 is: 11,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.26 : 18,345.74 = 8,259.69 : x
  2. Step 2: Convert to fraction form
    13,297.26/18,345.74 = 8,259.69/x
  3. Step 3: Cross multiply
    13,297.26x = 18,345.74 × 8,259.69
  4. Step 4: Simplify right side
    13,297.26x = 151,530,083.92
  5. Step 5: Solve for x
    x = 151,530,083.92/13,297.26
  6. Step 6: Final answer
    x = 11,395.59

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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.