Home / 19,170.88-26,451.77-11,211.51

Finding the Fourth Proportional to 19,170.88, 26,451.77 and 11,211.51

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Solution

The fourth proportional to 19,170.88, 26,451.77 and 11,211.51 is: 15,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.88 : 26,451.77 = 11,211.51 : x
  2. Step 2: Convert to fraction form
    19,170.88/26,451.77 = 11,211.51/x
  3. Step 3: Cross multiply
    19,170.88x = 26,451.77 × 11,211.51
  4. Step 4: Simplify right side
    19,170.88x = 296,564,327.01
  5. Step 5: Solve for x
    x = 296,564,327.01/19,170.88
  6. Step 6: Final answer
    x = 15,469.52

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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.