Home / 17,949.86-24,783-11,238.20

Finding the Fourth Proportional to 17,949.86, 24,783 and 11,238.20

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Solution

The fourth proportional to 17,949.86, 24,783 and 11,238.20 is: 15,516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,949.86 : 24,783 = 11,238.20 : x
  2. Step 2: Convert to fraction form
    17,949.86/24,783 = 11,238.20/x
  3. Step 3: Cross multiply
    17,949.86x = 24,783 × 11,238.20
  4. Step 4: Simplify right side
    17,949.86x = 278,516,310.60
  5. Step 5: Solve for x
    x = 278,516,310.60/17,949.86
  6. Step 6: Final answer
    x = 15,516.35

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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.