Home / 13,650.76-18,833.88-8,339.92

Finding the Fourth Proportional to 13,650.76, 18,833.88 and 8,339.92

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Solution

The fourth proportional to 13,650.76, 18,833.88 and 8,339.92 is: 11,506.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.76 : 18,833.88 = 8,339.92 : x
  2. Step 2: Convert to fraction form
    13,650.76/18,833.88 = 8,339.92/x
  3. Step 3: Cross multiply
    13,650.76x = 18,833.88 × 8,339.92
  4. Step 4: Simplify right side
    13,650.76x = 157,073,052.49
  5. Step 5: Solve for x
    x = 157,073,052.49/13,650.76
  6. Step 6: Final answer
    x = 11,506.54

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Half scale
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Double scale
Find fourth proportional to 13,651.76, 18,835.26 and 8,340.92
Similar ratio
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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.