Home / 11,942.22-16,468.70-7,907.20

Finding the Fourth Proportional to 11,942.22, 16,468.70 and 7,907.20

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Solution

The fourth proportional to 11,942.22, 16,468.70 and 7,907.20 is: 10,904.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.22 : 16,468.70 = 7,907.20 : x
  2. Step 2: Convert to fraction form
    11,942.22/16,468.70 = 7,907.20/x
  3. Step 3: Cross multiply
    11,942.22x = 16,468.70 × 7,907.20
  4. Step 4: Simplify right side
    11,942.22x = 130,221,304.64
  5. Step 5: Solve for x
    x = 130,221,304.64/11,942.22
  6. Step 6: Final answer
    x = 10,904.28

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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.