Home / 19,115.59-26,379.68-11,156.26

Finding the Fourth Proportional to 19,115.59, 26,379.68 and 11,156.26

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Solution

The fourth proportional to 19,115.59, 26,379.68 and 11,156.26 is: 15,395.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.59 : 26,379.68 = 11,156.26 : x
  2. Step 2: Convert to fraction form
    19,115.59/26,379.68 = 11,156.26/x
  3. Step 3: Cross multiply
    19,115.59x = 26,379.68 × 11,156.26
  4. Step 4: Simplify right side
    19,115.59x = 294,298,568.80
  5. Step 5: Solve for x
    x = 294,298,568.80/19,115.59
  6. Step 6: Final answer
    x = 15,395.74

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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.