Home / 10,115.73-15,173.60-4,272.39

Finding the Fourth Proportional to 10,115.73, 15,173.60 and 4,272.39

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Solution

The fourth proportional to 10,115.73, 15,173.60 and 4,272.39 is: 6,408.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.73 : 15,173.60 = 4,272.39 : x
  2. Step 2: Convert to fraction form
    10,115.73/15,173.60 = 4,272.39/x
  3. Step 3: Cross multiply
    10,115.73x = 15,173.60 × 4,272.39
  4. Step 4: Simplify right side
    10,115.73x = 64,827,515.54
  5. Step 5: Solve for x
    x = 64,827,515.54/10,115.73
  6. Step 6: Final answer
    x = 6,408.59

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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.