Home / 13,541.11-18,645.19-11,853.07

Finding the Fourth Proportional to 13,541.11, 18,645.19 and 11,853.07

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Solution

The fourth proportional to 13,541.11, 18,645.19 and 11,853.07 is: 16,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.11 : 18,645.19 = 11,853.07 : x
  2. Step 2: Convert to fraction form
    13,541.11/18,645.19 = 11,853.07/x
  3. Step 3: Cross multiply
    13,541.11x = 18,645.19 × 11,853.07
  4. Step 4: Simplify right side
    13,541.11x = 221,002,742.23
  5. Step 5: Solve for x
    x = 221,002,742.23/13,541.11
  6. Step 6: Final answer
    x = 16,320.87

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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.