Home / 16,771.82-23,145.63-12,572.78

Finding the Fourth Proportional to 16,771.82, 23,145.63 and 12,572.78

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Solution

The fourth proportional to 16,771.82, 23,145.63 and 12,572.78 is: 17,350.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,771.82 : 23,145.63 = 12,572.78 : x
  2. Step 2: Convert to fraction form
    16,771.82/23,145.63 = 12,572.78/x
  3. Step 3: Cross multiply
    16,771.82x = 23,145.63 × 12,572.78
  4. Step 4: Simplify right side
    16,771.82x = 291,004,913.95
  5. Step 5: Solve for x
    x = 291,004,913.95/16,771.82
  6. Step 6: Final answer
    x = 17,350.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.