Home / 9,109.60-13,660.35-4,180.75

Finding the Fourth Proportional to 9,109.60, 13,660.35 and 4,180.75

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Solution

The fourth proportional to 9,109.60, 13,660.35 and 4,180.75 is: 6,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.60 : 13,660.35 = 4,180.75 : x
  2. Step 2: Convert to fraction form
    9,109.60/13,660.35 = 4,180.75/x
  3. Step 3: Cross multiply
    9,109.60x = 13,660.35 × 4,180.75
  4. Step 4: Simplify right side
    9,109.60x = 57,110,508.26
  5. Step 5: Solve for x
    x = 57,110,508.26/9,109.60
  6. Step 6: Final answer
    x = 6,269.27

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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.