Home / 13,821.66-20,733.12-3,962.34

Finding the Fourth Proportional to 13,821.66, 20,733.12 and 3,962.34

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Solution

The fourth proportional to 13,821.66, 20,733.12 and 3,962.34 is: 5,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.66 : 20,733.12 = 3,962.34 : x
  2. Step 2: Convert to fraction form
    13,821.66/20,733.12 = 3,962.34/x
  3. Step 3: Cross multiply
    13,821.66x = 20,733.12 × 3,962.34
  4. Step 4: Simplify right side
    13,821.66x = 82,151,670.70
  5. Step 5: Solve for x
    x = 82,151,670.70/13,821.66
  6. Step 6: Final answer
    x = 5,943.69

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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.