Home / 14,123.21-21,184.65-3,449.66

Finding the Fourth Proportional to 14,123.21, 21,184.65 and 3,449.66

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Solution

The fourth proportional to 14,123.21, 21,184.65 and 3,449.66 is: 5,174.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.21 : 21,184.65 = 3,449.66 : x
  2. Step 2: Convert to fraction form
    14,123.21/21,184.65 = 3,449.66/x
  3. Step 3: Cross multiply
    14,123.21x = 21,184.65 × 3,449.66
  4. Step 4: Simplify right side
    14,123.21x = 73,079,733.80
  5. Step 5: Solve for x
    x = 73,079,733.80/14,123.21
  6. Step 6: Final answer
    x = 5,174.44

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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.