Home / 19,818.56-27,352.12-11,865.16

Finding the Fourth Proportional to 19,818.56, 27,352.12 and 11,865.16

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Solution

The fourth proportional to 19,818.56, 27,352.12 and 11,865.16 is: 16,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.56 : 27,352.12 = 11,865.16 : x
  2. Step 2: Convert to fraction form
    19,818.56/27,352.12 = 11,865.16/x
  3. Step 3: Cross multiply
    19,818.56x = 27,352.12 × 11,865.16
  4. Step 4: Simplify right side
    19,818.56x = 324,537,280.14
  5. Step 5: Solve for x
    x = 324,537,280.14/19,818.56
  6. Step 6: Final answer
    x = 16,375.42

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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.