Home / 11,836.20-16,340.10-8,533.80

Finding the Fourth Proportional to 11,836.20, 16,340.10 and 8,533.80

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Solution

The fourth proportional to 11,836.20, 16,340.10 and 8,533.80 is: 11,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.20 : 16,340.10 = 8,533.80 : x
  2. Step 2: Convert to fraction form
    11,836.20/16,340.10 = 8,533.80/x
  3. Step 3: Cross multiply
    11,836.20x = 16,340.10 × 8,533.80
  4. Step 4: Simplify right side
    11,836.20x = 139,443,145.38
  5. Step 5: Solve for x
    x = 139,443,145.38/11,836.20
  6. Step 6: Final answer
    x = 11,781.07

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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.