Home / 11,285.43-16,930.35-3,387.80

Finding the Fourth Proportional to 11,285.43, 16,930.35 and 3,387.80

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Solution

The fourth proportional to 11,285.43, 16,930.35 and 3,387.80 is: 5,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.43 : 16,930.35 = 3,387.80 : x
  2. Step 2: Convert to fraction form
    11,285.43/16,930.35 = 3,387.80/x
  3. Step 3: Cross multiply
    11,285.43x = 16,930.35 × 3,387.80
  4. Step 4: Simplify right side
    11,285.43x = 57,356,555.08
  5. Step 5: Solve for x
    x = 57,356,555.08/11,285.43
  6. Step 6: Final answer
    x = 5,082.35

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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.