Home / 12,418.03-17,143.22-9,579.02

Finding the Fourth Proportional to 12,418.03, 17,143.22 and 9,579.02

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Solution

The fourth proportional to 12,418.03, 17,143.22 and 9,579.02 is: 13,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.03 : 17,143.22 = 9,579.02 : x
  2. Step 2: Convert to fraction form
    12,418.03/17,143.22 = 9,579.02/x
  3. Step 3: Cross multiply
    12,418.03x = 17,143.22 × 9,579.02
  4. Step 4: Simplify right side
    12,418.03x = 164,215,314.05
  5. Step 5: Solve for x
    x = 164,215,314.05/12,418.03
  6. Step 6: Final answer
    x = 13,223.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.