Home / 10,809.16-16,217.79-3,789.70

Finding the Fourth Proportional to 10,809.16, 16,217.79 and 3,789.70

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Solution

The fourth proportional to 10,809.16, 16,217.79 and 3,789.70 is: 5,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.16 : 16,217.79 = 3,789.70 : x
  2. Step 2: Convert to fraction form
    10,809.16/16,217.79 = 3,789.70/x
  3. Step 3: Cross multiply
    10,809.16x = 16,217.79 × 3,789.70
  4. Step 4: Simplify right side
    10,809.16x = 61,460,558.76
  5. Step 5: Solve for x
    x = 61,460,558.76/10,809.16
  6. Step 6: Final answer
    x = 5,685.97

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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.