Home / 13,078.57-19,618.68-4,313.56

Finding the Fourth Proportional to 13,078.57, 19,618.68 and 4,313.56

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Solution

The fourth proportional to 13,078.57, 19,618.68 and 4,313.56 is: 6,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.57 : 19,618.68 = 4,313.56 : x
  2. Step 2: Convert to fraction form
    13,078.57/19,618.68 = 4,313.56/x
  3. Step 3: Cross multiply
    13,078.57x = 19,618.68 × 4,313.56
  4. Step 4: Simplify right side
    13,078.57x = 84,626,353.30
  5. Step 5: Solve for x
    x = 84,626,353.30/13,078.57
  6. Step 6: Final answer
    x = 6,470.61

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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.