Home / 15,448.94-21,319.64-8,375.48

Finding the Fourth Proportional to 15,448.94, 21,319.64 and 8,375.48

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Solution

The fourth proportional to 15,448.94, 21,319.64 and 8,375.48 is: 11,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.94 : 21,319.64 = 8,375.48 : x
  2. Step 2: Convert to fraction form
    15,448.94/21,319.64 = 8,375.48/x
  3. Step 3: Cross multiply
    15,448.94x = 21,319.64 × 8,375.48
  4. Step 4: Simplify right side
    15,448.94x = 178,562,218.43
  5. Step 5: Solve for x
    x = 178,562,218.43/15,448.94
  6. Step 6: Final answer
    x = 11,558.22

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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.