Home / 13,816.67-20,722.01-3,953.30

Finding the Fourth Proportional to 13,816.67, 20,722.01 and 3,953.30

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Solution

The fourth proportional to 13,816.67, 20,722.01 and 3,953.30 is: 5,929.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.67 : 20,722.01 = 3,953.30 : x
  2. Step 2: Convert to fraction form
    13,816.67/20,722.01 = 3,953.30/x
  3. Step 3: Cross multiply
    13,816.67x = 20,722.01 × 3,953.30
  4. Step 4: Simplify right side
    13,816.67x = 81,920,198.76
  5. Step 5: Solve for x
    x = 81,920,198.76/13,816.67
  6. Step 6: Final answer
    x = 5,929.09

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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.