Home / 11,238.73-16,859.90-4,219.28

Finding the Fourth Proportional to 11,238.73, 16,859.90 and 4,219.28

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Solution

The fourth proportional to 11,238.73, 16,859.90 and 4,219.28 is: 6,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.73 : 16,859.90 = 4,219.28 : x
  2. Step 2: Convert to fraction form
    11,238.73/16,859.90 = 4,219.28/x
  3. Step 3: Cross multiply
    11,238.73x = 16,859.90 × 4,219.28
  4. Step 4: Simplify right side
    11,238.73x = 71,136,628.35
  5. Step 5: Solve for x
    x = 71,136,628.35/11,238.73
  6. Step 6: Final answer
    x = 6,329.60

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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.