Home / 11,781.88-16,259.22-6,476.92

Finding the Fourth Proportional to 11,781.88, 16,259.22 and 6,476.92

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Solution

The fourth proportional to 11,781.88, 16,259.22 and 6,476.92 is: 8,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.88 : 16,259.22 = 6,476.92 : x
  2. Step 2: Convert to fraction form
    11,781.88/16,259.22 = 6,476.92/x
  3. Step 3: Cross multiply
    11,781.88x = 16,259.22 × 6,476.92
  4. Step 4: Simplify right side
    11,781.88x = 105,309,667.20
  5. Step 5: Solve for x
    x = 105,309,667.20/11,781.88
  6. Step 6: Final answer
    x = 8,938.27

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Half scale
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Double scale
Find fourth proportional to 11,782.88, 16,260.60 and 6,477.92
Similar ratio
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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.