Home / 15,419.54-23,115.42-5,551.88

Finding the Fourth Proportional to 15,419.54, 23,115.42 and 5,551.88

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Solution

The fourth proportional to 15,419.54, 23,115.42 and 5,551.88 is: 8,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.54 : 23,115.42 = 5,551.88 : x
  2. Step 2: Convert to fraction form
    15,419.54/23,115.42 = 5,551.88/x
  3. Step 3: Cross multiply
    15,419.54x = 23,115.42 × 5,551.88
  4. Step 4: Simplify right side
    15,419.54x = 128,333,922.41
  5. Step 5: Solve for x
    x = 128,333,922.41/15,419.54
  6. Step 6: Final answer
    x = 8,322.81

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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.