Home / 9,945.60-13,723.20-6,169.68

Finding the Fourth Proportional to 9,945.60, 13,723.20 and 6,169.68

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Solution

The fourth proportional to 9,945.60, 13,723.20 and 6,169.68 is: 8,513.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945.60 : 13,723.20 = 6,169.68 : x
  2. Step 2: Convert to fraction form
    9,945.60/13,723.20 = 6,169.68/x
  3. Step 3: Cross multiply
    9,945.60x = 13,723.20 × 6,169.68
  4. Step 4: Simplify right side
    9,945.60x = 84,667,752.58
  5. Step 5: Solve for x
    x = 84,667,752.58/9,945.60
  6. Step 6: Final answer
    x = 8,513.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.