Home / 11,709.20-17,563.80-4,313.90

Finding the Fourth Proportional to 11,709.20, 17,563.80 and 4,313.90

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Solution

The fourth proportional to 11,709.20, 17,563.80 and 4,313.90 is: 6,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.20 : 17,563.80 = 4,313.90 : x
  2. Step 2: Convert to fraction form
    11,709.20/17,563.80 = 4,313.90/x
  3. Step 3: Cross multiply
    11,709.20x = 17,563.80 × 4,313.90
  4. Step 4: Simplify right side
    11,709.20x = 75,768,476.82
  5. Step 5: Solve for x
    x = 75,768,476.82/11,709.20
  6. Step 6: Final answer
    x = 6,470.85

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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.