Home / 11,229.48-16,836.69-5,382.90

Finding the Fourth Proportional to 11,229.48, 16,836.69 and 5,382.90

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Solution

The fourth proportional to 11,229.48, 16,836.69 and 5,382.90 is: 8,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.48 : 16,836.69 = 5,382.90 : x
  2. Step 2: Convert to fraction form
    11,229.48/16,836.69 = 5,382.90/x
  3. Step 3: Cross multiply
    11,229.48x = 16,836.69 × 5,382.90
  4. Step 4: Simplify right side
    11,229.48x = 90,630,218.60
  5. Step 5: Solve for x
    x = 90,630,218.60/11,229.48
  6. Step 6: Final answer
    x = 8,070.74

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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.