Home / 14,913.37-20,580.49-8,540.05

Finding the Fourth Proportional to 14,913.37, 20,580.49 and 8,540.05

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Solution

The fourth proportional to 14,913.37, 20,580.49 and 8,540.05 is: 11,785.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.37 : 20,580.49 = 8,540.05 : x
  2. Step 2: Convert to fraction form
    14,913.37/20,580.49 = 8,540.05/x
  3. Step 3: Cross multiply
    14,913.37x = 20,580.49 × 8,540.05
  4. Step 4: Simplify right side
    14,913.37x = 175,758,413.62
  5. Step 5: Solve for x
    x = 175,758,413.62/14,913.37
  6. Step 6: Final answer
    x = 11,785.29

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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.