Home / 19,669.72-27,145.11-11,603.68

Finding the Fourth Proportional to 19,669.72, 27,145.11 and 11,603.68

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Solution

The fourth proportional to 19,669.72, 27,145.11 and 11,603.68 is: 16,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.72 : 27,145.11 = 11,603.68 : x
  2. Step 2: Convert to fraction form
    19,669.72/27,145.11 = 11,603.68/x
  3. Step 3: Cross multiply
    19,669.72x = 27,145.11 × 11,603.68
  4. Step 4: Simplify right side
    19,669.72x = 314,983,170.00
  5. Step 5: Solve for x
    x = 314,983,170.00/19,669.72
  6. Step 6: Final answer
    x = 16,013.61

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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.