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Finding the Fourth Proportional to 13,929, 20,895.66 and 4,566.84

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Solution

The fourth proportional to 13,929, 20,895.66 and 4,566.84 is: 6,850.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929 : 20,895.66 = 4,566.84 : x
  2. Step 2: Convert to fraction form
    13,929/20,895.66 = 4,566.84/x
  3. Step 3: Cross multiply
    13,929x = 20,895.66 × 4,566.84
  4. Step 4: Simplify right side
    13,929x = 95,427,135.91
  5. Step 5: Solve for x
    x = 95,427,135.91/13,929
  6. Step 6: Final answer
    x = 6,850.97

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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.