Home / 19,429.07-26,811.53-11,776.87

Finding the Fourth Proportional to 19,429.07, 26,811.53 and 11,776.87

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Solution

The fourth proportional to 19,429.07, 26,811.53 and 11,776.87 is: 16,251.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.07 : 26,811.53 = 11,776.87 : x
  2. Step 2: Convert to fraction form
    19,429.07/26,811.53 = 11,776.87/x
  3. Step 3: Cross multiply
    19,429.07x = 26,811.53 × 11,776.87
  4. Step 4: Simplify right side
    19,429.07x = 315,755,988.35
  5. Step 5: Solve for x
    x = 315,755,988.35/19,429.07
  6. Step 6: Final answer
    x = 16,251.73

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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.