Home / 14,079.42-21,104.55-8,218.26

Finding the Fourth Proportional to 14,079.42, 21,104.55 and 8,218.26

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Solution

The fourth proportional to 14,079.42, 21,104.55 and 8,218.26 is: 12,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.42 : 21,104.55 = 8,218.26 : x
  2. Step 2: Convert to fraction form
    14,079.42/21,104.55 = 8,218.26/x
  3. Step 3: Cross multiply
    14,079.42x = 21,104.55 × 8,218.26
  4. Step 4: Simplify right side
    14,079.42x = 173,442,679.08
  5. Step 5: Solve for x
    x = 173,442,679.08/14,079.42
  6. Step 6: Final answer
    x = 12,318.88

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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.