Home / 13,008.87-19,511.37-4,242.78

Finding the Fourth Proportional to 13,008.87, 19,511.37 and 4,242.78

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Solution

The fourth proportional to 13,008.87, 19,511.37 and 4,242.78 is: 6,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.87 : 19,511.37 = 4,242.78 : x
  2. Step 2: Convert to fraction form
    13,008.87/19,511.37 = 4,242.78/x
  3. Step 3: Cross multiply
    13,008.87x = 19,511.37 × 4,242.78
  4. Step 4: Simplify right side
    13,008.87x = 82,782,450.41
  5. Step 5: Solve for x
    x = 82,782,450.41/13,008.87
  6. Step 6: Final answer
    x = 6,363.54

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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.