Home / 13,434.68-20,146.86-4,072.50

Finding the Fourth Proportional to 13,434.68, 20,146.86 and 4,072.50

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Solution

The fourth proportional to 13,434.68, 20,146.86 and 4,072.50 is: 6,107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.68 : 20,146.86 = 4,072.50 : x
  2. Step 2: Convert to fraction form
    13,434.68/20,146.86 = 4,072.50/x
  3. Step 3: Cross multiply
    13,434.68x = 20,146.86 × 4,072.50
  4. Step 4: Simplify right side
    13,434.68x = 82,048,087.35
  5. Step 5: Solve for x
    x = 82,048,087.35/13,434.68
  6. Step 6: Final answer
    x = 6,107.18

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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.