Home / 13,380.75-20,055.47-4,607.91

Finding the Fourth Proportional to 13,380.75, 20,055.47 and 4,607.91

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Solution

The fourth proportional to 13,380.75, 20,055.47 and 4,607.91 is: 6,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.75 : 20,055.47 = 4,607.91 : x
  2. Step 2: Convert to fraction form
    13,380.75/20,055.47 = 4,607.91/x
  3. Step 3: Cross multiply
    13,380.75x = 20,055.47 × 4,607.91
  4. Step 4: Simplify right side
    13,380.75x = 92,413,777.73
  5. Step 5: Solve for x
    x = 92,413,777.73/13,380.75
  6. Step 6: Final answer
    x = 6,906.47

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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.