Home / 11,907.87-16,433.79-6,603.72

Finding the Fourth Proportional to 11,907.87, 16,433.79 and 6,603.72

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Solution

The fourth proportional to 11,907.87, 16,433.79 and 6,603.72 is: 9,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.87 : 16,433.79 = 6,603.72 : x
  2. Step 2: Convert to fraction form
    11,907.87/16,433.79 = 6,603.72/x
  3. Step 3: Cross multiply
    11,907.87x = 16,433.79 × 6,603.72
  4. Step 4: Simplify right side
    11,907.87x = 108,524,032.51
  5. Step 5: Solve for x
    x = 108,524,032.51/11,907.87
  6. Step 6: Final answer
    x = 9,113.64

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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.