Home / 8,641.27-12,961.91-2,798.34

Finding the Fourth Proportional to 8,641.27, 12,961.91 and 2,798.34

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Solution

The fourth proportional to 8,641.27, 12,961.91 and 2,798.34 is: 4,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.27 : 12,961.91 = 2,798.34 : x
  2. Step 2: Convert to fraction form
    8,641.27/12,961.91 = 2,798.34/x
  3. Step 3: Cross multiply
    8,641.27x = 12,961.91 × 2,798.34
  4. Step 4: Simplify right side
    8,641.27x = 36,271,831.23
  5. Step 5: Solve for x
    x = 36,271,831.23/8,641.27
  6. Step 6: Final answer
    x = 4,197.51

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Similar ratio
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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.