Home / 10,814.42-16,221.63-4,243.70

Finding the Fourth Proportional to 10,814.42, 16,221.63 and 4,243.70

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Solution

The fourth proportional to 10,814.42, 16,221.63 and 4,243.70 is: 6,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,814.42 : 16,221.63 = 4,243.70 : x
  2. Step 2: Convert to fraction form
    10,814.42/16,221.63 = 4,243.70/x
  3. Step 3: Cross multiply
    10,814.42x = 16,221.63 × 4,243.70
  4. Step 4: Simplify right side
    10,814.42x = 68,839,731.23
  5. Step 5: Solve for x
    x = 68,839,731.23/10,814.42
  6. Step 6: Final answer
    x = 6,365.55

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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.