Home / 15,033.09-20,743.79-8,317.79

Finding the Fourth Proportional to 15,033.09, 20,743.79 and 8,317.79

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Solution

The fourth proportional to 15,033.09, 20,743.79 and 8,317.79 is: 11,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.09 : 20,743.79 = 8,317.79 : x
  2. Step 2: Convert to fraction form
    15,033.09/20,743.79 = 8,317.79/x
  3. Step 3: Cross multiply
    15,033.09x = 20,743.79 × 8,317.79
  4. Step 4: Simplify right side
    15,033.09x = 172,542,489.02
  5. Step 5: Solve for x
    x = 172,542,489.02/15,033.09
  6. Step 6: Final answer
    x = 11,477.51

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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.