Home / 19,211.09-26,505.41-11,143.10

Finding the Fourth Proportional to 19,211.09, 26,505.41 and 11,143.10

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Solution

The fourth proportional to 19,211.09, 26,505.41 and 11,143.10 is: 15,374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.09 : 26,505.41 = 11,143.10 : x
  2. Step 2: Convert to fraction form
    19,211.09/26,505.41 = 11,143.10/x
  3. Step 3: Cross multiply
    19,211.09x = 26,505.41 × 11,143.10
  4. Step 4: Simplify right side
    19,211.09x = 295,352,444.72
  5. Step 5: Solve for x
    x = 295,352,444.72/19,211.09
  6. Step 6: Final answer
    x = 15,374.06

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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.