Home / 10,816.16-16,224.13-3,420.62

Finding the Fourth Proportional to 10,816.16, 16,224.13 and 3,420.62

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Solution

The fourth proportional to 10,816.16, 16,224.13 and 3,420.62 is: 5,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.16 : 16,224.13 = 3,420.62 : x
  2. Step 2: Convert to fraction form
    10,816.16/16,224.13 = 3,420.62/x
  3. Step 3: Cross multiply
    10,816.16x = 16,224.13 × 3,420.62
  4. Step 4: Simplify right side
    10,816.16x = 55,496,583.56
  5. Step 5: Solve for x
    x = 55,496,583.56/10,816.16
  6. Step 6: Final answer
    x = 5,130.90

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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.