Home / 10,343.88-15,518.25-3,418.38

Finding the Fourth Proportional to 10,343.88, 15,518.25 and 3,418.38

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Solution

The fourth proportional to 10,343.88, 15,518.25 and 3,418.38 is: 5,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.88 : 15,518.25 = 3,418.38 : x
  2. Step 2: Convert to fraction form
    10,343.88/15,518.25 = 3,418.38/x
  3. Step 3: Cross multiply
    10,343.88x = 15,518.25 × 3,418.38
  4. Step 4: Simplify right side
    10,343.88x = 53,047,180.75
  5. Step 5: Solve for x
    x = 53,047,180.75/10,343.88
  6. Step 6: Final answer
    x = 5,128.37

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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.