Home / 11,219.72-16,829.58-3,428.47

Finding the Fourth Proportional to 11,219.72, 16,829.58 and 3,428.47

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Solution

The fourth proportional to 11,219.72, 16,829.58 and 3,428.47 is: 5,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.72 : 16,829.58 = 3,428.47 : x
  2. Step 2: Convert to fraction form
    11,219.72/16,829.58 = 3,428.47/x
  3. Step 3: Cross multiply
    11,219.72x = 16,829.58 × 3,428.47
  4. Step 4: Simplify right side
    11,219.72x = 57,699,625.99
  5. Step 5: Solve for x
    x = 57,699,625.99/11,219.72
  6. Step 6: Final answer
    x = 5,142.70

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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.