Home / 13,939.37-20,907.04-4,579.76

Finding the Fourth Proportional to 13,939.37, 20,907.04 and 4,579.76

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Solution

The fourth proportional to 13,939.37, 20,907.04 and 4,579.76 is: 6,868.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.37 : 20,907.04 = 4,579.76 : x
  2. Step 2: Convert to fraction form
    13,939.37/20,907.04 = 4,579.76/x
  3. Step 3: Cross multiply
    13,939.37x = 20,907.04 × 4,579.76
  4. Step 4: Simplify right side
    13,939.37x = 95,749,155.46
  5. Step 5: Solve for x
    x = 95,749,155.46/13,939.37
  6. Step 6: Final answer
    x = 6,868.97

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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.