Home / 11,245.88-16,869.64-4,320.38

Finding the Fourth Proportional to 11,245.88, 16,869.64 and 4,320.38

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Solution

The fourth proportional to 11,245.88, 16,869.64 and 4,320.38 is: 6,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.88 : 16,869.64 = 4,320.38 : x
  2. Step 2: Convert to fraction form
    11,245.88/16,869.64 = 4,320.38/x
  3. Step 3: Cross multiply
    11,245.88x = 16,869.64 × 4,320.38
  4. Step 4: Simplify right side
    11,245.88x = 72,883,255.26
  5. Step 5: Solve for x
    x = 72,883,255.26/11,245.88
  6. Step 6: Final answer
    x = 6,480.89

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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.