Home / 14,126.32-21,175.71-6,728.79

Finding the Fourth Proportional to 14,126.32, 21,175.71 and 6,728.79

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Solution

The fourth proportional to 14,126.32, 21,175.71 and 6,728.79 is: 10,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.32 : 21,175.71 = 6,728.79 : x
  2. Step 2: Convert to fraction form
    14,126.32/21,175.71 = 6,728.79/x
  3. Step 3: Cross multiply
    14,126.32x = 21,175.71 × 6,728.79
  4. Step 4: Simplify right side
    14,126.32x = 142,486,905.69
  5. Step 5: Solve for x
    x = 142,486,905.69/14,126.32
  6. Step 6: Final answer
    x = 10,086.63

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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.