Home / 13,578.63-20,361.51-5,262.54

Finding the Fourth Proportional to 13,578.63, 20,361.51 and 5,262.54

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Solution

The fourth proportional to 13,578.63, 20,361.51 and 5,262.54 is: 7,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.63 : 20,361.51 = 5,262.54 : x
  2. Step 2: Convert to fraction form
    13,578.63/20,361.51 = 5,262.54/x
  3. Step 3: Cross multiply
    13,578.63x = 20,361.51 × 5,262.54
  4. Step 4: Simplify right side
    13,578.63x = 107,153,260.84
  5. Step 5: Solve for x
    x = 107,153,260.84/13,578.63
  6. Step 6: Final answer
    x = 7,891.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.