Home / 10,817.03-16,227.23-3,420.78

Finding the Fourth Proportional to 10,817.03, 16,227.23 and 3,420.78

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Solution

The fourth proportional to 10,817.03, 16,227.23 and 3,420.78 is: 5,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.03 : 16,227.23 = 3,420.78 : x
  2. Step 2: Convert to fraction form
    10,817.03/16,227.23 = 3,420.78/x
  3. Step 3: Cross multiply
    10,817.03x = 16,227.23 × 3,420.78
  4. Step 4: Simplify right side
    10,817.03x = 55,509,783.84
  5. Step 5: Solve for x
    x = 55,509,783.84/10,817.03
  6. Step 6: Final answer
    x = 5,131.70

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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.