Home / 13,436.77-20,155.20-4,076.87

Finding the Fourth Proportional to 13,436.77, 20,155.20 and 4,076.87

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Solution

The fourth proportional to 13,436.77, 20,155.20 and 4,076.87 is: 6,115.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.77 : 20,155.20 = 4,076.87 : x
  2. Step 2: Convert to fraction form
    13,436.77/20,155.20 = 4,076.87/x
  3. Step 3: Cross multiply
    13,436.77x = 20,155.20 × 4,076.87
  4. Step 4: Simplify right side
    13,436.77x = 82,170,029.45
  5. Step 5: Solve for x
    x = 82,170,029.45/13,436.77
  6. Step 6: Final answer
    x = 6,115.31

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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.