Home / 13,926.12-20,865.72-6,896.76

Finding the Fourth Proportional to 13,926.12, 20,865.72 and 6,896.76

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Solution

The fourth proportional to 13,926.12, 20,865.72 and 6,896.76 is: 10,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.12 : 20,865.72 = 6,896.76 : x
  2. Step 2: Convert to fraction form
    13,926.12/20,865.72 = 6,896.76/x
  3. Step 3: Cross multiply
    13,926.12x = 20,865.72 × 6,896.76
  4. Step 4: Simplify right side
    13,926.12x = 143,905,863.07
  5. Step 5: Solve for x
    x = 143,905,863.07/13,926.12
  6. Step 6: Final answer
    x = 10,333.52

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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.