Home / 11,221.20-16,830.45-4,646.70

Finding the Fourth Proportional to 11,221.20, 16,830.45 and 4,646.70

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Solution

The fourth proportional to 11,221.20, 16,830.45 and 4,646.70 is: 6,969.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.20 : 16,830.45 = 4,646.70 : x
  2. Step 2: Convert to fraction form
    11,221.20/16,830.45 = 4,646.70/x
  3. Step 3: Cross multiply
    11,221.20x = 16,830.45 × 4,646.70
  4. Step 4: Simplify right side
    11,221.20x = 78,206,052.02
  5. Step 5: Solve for x
    x = 78,206,052.02/11,221.20
  6. Step 6: Final answer
    x = 6,969.49

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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.