Home / 13,436.80-20,155.24-4,076.89

Finding the Fourth Proportional to 13,436.80, 20,155.24 and 4,076.89

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Solution

The fourth proportional to 13,436.80, 20,155.24 and 4,076.89 is: 6,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.80 : 20,155.24 = 4,076.89 : x
  2. Step 2: Convert to fraction form
    13,436.80/20,155.24 = 4,076.89/x
  3. Step 3: Cross multiply
    13,436.80x = 20,155.24 × 4,076.89
  4. Step 4: Simplify right side
    13,436.80x = 82,170,792.11
  5. Step 5: Solve for x
    x = 82,170,792.11/13,436.80
  6. Step 6: Final answer
    x = 6,115.35

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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.