Home / 13,078.52-19,620.68-4,313.08

Finding the Fourth Proportional to 13,078.52, 19,620.68 and 4,313.08

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Solution

The fourth proportional to 13,078.52, 19,620.68 and 4,313.08 is: 6,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.52 : 19,620.68 = 4,313.08 : x
  2. Step 2: Convert to fraction form
    13,078.52/19,620.68 = 4,313.08/x
  3. Step 3: Cross multiply
    13,078.52x = 19,620.68 × 4,313.08
  4. Step 4: Simplify right side
    13,078.52x = 84,625,562.49
  5. Step 5: Solve for x
    x = 84,625,562.49/13,078.52
  6. Step 6: Final answer
    x = 6,470.58

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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.