Home / 10,535.05-15,803.39-3,138.94

Finding the Fourth Proportional to 10,535.05, 15,803.39 and 3,138.94

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Solution

The fourth proportional to 10,535.05, 15,803.39 and 3,138.94 is: 4,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.05 : 15,803.39 = 3,138.94 : x
  2. Step 2: Convert to fraction form
    10,535.05/15,803.39 = 3,138.94/x
  3. Step 3: Cross multiply
    10,535.05x = 15,803.39 × 3,138.94
  4. Step 4: Simplify right side
    10,535.05x = 49,605,893.01
  5. Step 5: Solve for x
    x = 49,605,893.01/10,535.05
  6. Step 6: Final answer
    x = 4,708.65

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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.