Home / 11,327.60-16,991.40-8,562.80

Finding the Fourth Proportional to 11,327.60, 16,991.40 and 8,562.80

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Solution

The fourth proportional to 11,327.60, 16,991.40 and 8,562.80 is: 12,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.60 : 16,991.40 = 8,562.80 : x
  2. Step 2: Convert to fraction form
    11,327.60/16,991.40 = 8,562.80/x
  3. Step 3: Cross multiply
    11,327.60x = 16,991.40 × 8,562.80
  4. Step 4: Simplify right side
    11,327.60x = 145,493,959.92
  5. Step 5: Solve for x
    x = 145,493,959.92/11,327.60
  6. Step 6: Final answer
    x = 12,844.20

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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.