Home / 9,418.78-14,128.17-2,493.28

Finding the Fourth Proportional to 9,418.78, 14,128.17 and 2,493.28

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Solution

The fourth proportional to 9,418.78, 14,128.17 and 2,493.28 is: 3,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.78 : 14,128.17 = 2,493.28 : x
  2. Step 2: Convert to fraction form
    9,418.78/14,128.17 = 2,493.28/x
  3. Step 3: Cross multiply
    9,418.78x = 14,128.17 × 2,493.28
  4. Step 4: Simplify right side
    9,418.78x = 35,225,506.03
  5. Step 5: Solve for x
    x = 35,225,506.03/9,418.78
  6. Step 6: Final answer
    x = 3,739.92

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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.