Home / 10,890.28-16,335.96-3,099.64

Finding the Fourth Proportional to 10,890.28, 16,335.96 and 3,099.64

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Solution

The fourth proportional to 10,890.28, 16,335.96 and 3,099.64 is: 4,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.28 : 16,335.96 = 3,099.64 : x
  2. Step 2: Convert to fraction form
    10,890.28/16,335.96 = 3,099.64/x
  3. Step 3: Cross multiply
    10,890.28x = 16,335.96 × 3,099.64
  4. Step 4: Simplify right side
    10,890.28x = 50,635,595.05
  5. Step 5: Solve for x
    x = 50,635,595.05/10,890.28
  6. Step 6: Final answer
    x = 4,649.61

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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.