Home / 13,451.49-20,178.02-4,091.85

Finding the Fourth Proportional to 13,451.49, 20,178.02 and 4,091.85

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Solution

The fourth proportional to 13,451.49, 20,178.02 and 4,091.85 is: 6,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.49 : 20,178.02 = 4,091.85 : x
  2. Step 2: Convert to fraction form
    13,451.49/20,178.02 = 4,091.85/x
  3. Step 3: Cross multiply
    13,451.49x = 20,178.02 × 4,091.85
  4. Step 4: Simplify right side
    13,451.49x = 82,565,441.37
  5. Step 5: Solve for x
    x = 82,565,441.37/13,451.49
  6. Step 6: Final answer
    x = 6,138.01

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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.