Home / 14,745.73-20,350.78-8,777.41

Finding the Fourth Proportional to 14,745.73, 20,350.78 and 8,777.41

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Solution

The fourth proportional to 14,745.73, 20,350.78 and 8,777.41 is: 12,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.73 : 20,350.78 = 8,777.41 : x
  2. Step 2: Convert to fraction form
    14,745.73/20,350.78 = 8,777.41/x
  3. Step 3: Cross multiply
    14,745.73x = 20,350.78 × 8,777.41
  4. Step 4: Simplify right side
    14,745.73x = 178,627,139.88
  5. Step 5: Solve for x
    x = 178,627,139.88/14,745.73
  6. Step 6: Final answer
    x = 12,113.82

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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.