Home / 10,812.98-16,218.08-3,418.19

Finding the Fourth Proportional to 10,812.98, 16,218.08 and 3,418.19

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Solution

The fourth proportional to 10,812.98, 16,218.08 and 3,418.19 is: 5,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.98 : 16,218.08 = 3,418.19 : x
  2. Step 2: Convert to fraction form
    10,812.98/16,218.08 = 3,418.19/x
  3. Step 3: Cross multiply
    10,812.98x = 16,218.08 × 3,418.19
  4. Step 4: Simplify right side
    10,812.98x = 55,436,421.24
  5. Step 5: Solve for x
    x = 55,436,421.24/10,812.98
  6. Step 6: Final answer
    x = 5,126.84

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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.