Home / 15,629.35-21,546.03-11,145.31

Finding the Fourth Proportional to 15,629.35, 21,546.03 and 11,145.31

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Solution

The fourth proportional to 15,629.35, 21,546.03 and 11,145.31 is: 15,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.35 : 21,546.03 = 11,145.31 : x
  2. Step 2: Convert to fraction form
    15,629.35/21,546.03 = 11,145.31/x
  3. Step 3: Cross multiply
    15,629.35x = 21,546.03 × 11,145.31
  4. Step 4: Simplify right side
    15,629.35x = 240,137,183.62
  5. Step 5: Solve for x
    x = 240,137,183.62/15,629.35
  6. Step 6: Final answer
    x = 15,364.50

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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.