Home / 11,213.87-16,812.99-4,970.45

Finding the Fourth Proportional to 11,213.87, 16,812.99 and 4,970.45

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Solution

The fourth proportional to 11,213.87, 16,812.99 and 4,970.45 is: 7,452.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.87 : 16,812.99 = 4,970.45 : x
  2. Step 2: Convert to fraction form
    11,213.87/16,812.99 = 4,970.45/x
  3. Step 3: Cross multiply
    11,213.87x = 16,812.99 × 4,970.45
  4. Step 4: Simplify right side
    11,213.87x = 83,568,042.08
  5. Step 5: Solve for x
    x = 83,568,042.08/11,213.87
  6. Step 6: Final answer
    x = 7,452.21

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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.