Home / 10,579.38-15,859.76-4,000.76

Finding the Fourth Proportional to 10,579.38, 15,859.76 and 4,000.76

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Solution

The fourth proportional to 10,579.38, 15,859.76 and 4,000.76 is: 5,997.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.38 : 15,859.76 = 4,000.76 : x
  2. Step 2: Convert to fraction form
    10,579.38/15,859.76 = 4,000.76/x
  3. Step 3: Cross multiply
    10,579.38x = 15,859.76 × 4,000.76
  4. Step 4: Simplify right side
    10,579.38x = 63,451,093.42
  5. Step 5: Solve for x
    x = 63,451,093.42/10,579.38
  6. Step 6: Final answer
    x = 5,997.62

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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.