Home / 19,168.91-28,752.66-9,305.54

Finding the Fourth Proportional to 19,168.91, 28,752.66 and 9,305.54

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Solution

The fourth proportional to 19,168.91, 28,752.66 and 9,305.54 is: 13,957.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168.91 : 28,752.66 = 9,305.54 : x
  2. Step 2: Convert to fraction form
    19,168.91/28,752.66 = 9,305.54/x
  3. Step 3: Cross multiply
    19,168.91x = 28,752.66 × 9,305.54
  4. Step 4: Simplify right side
    19,168.91x = 267,558,883.97
  5. Step 5: Solve for x
    x = 267,558,883.97/19,168.91
  6. Step 6: Final answer
    x = 13,957.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.