Home / 11,942.15-16,425.36-9,579.11

Finding the Fourth Proportional to 11,942.15, 16,425.36 and 9,579.11

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Solution

The fourth proportional to 11,942.15, 16,425.36 and 9,579.11 is: 13,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.15 : 16,425.36 = 9,579.11 : x
  2. Step 2: Convert to fraction form
    11,942.15/16,425.36 = 9,579.11/x
  3. Step 3: Cross multiply
    11,942.15x = 16,425.36 × 9,579.11
  4. Step 4: Simplify right side
    11,942.15x = 157,340,248.10
  5. Step 5: Solve for x
    x = 157,340,248.10/11,942.15
  6. Step 6: Final answer
    x = 13,175.21

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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.