Home / 11,109.80-16,651.20-4,856.60

Finding the Fourth Proportional to 11,109.80, 16,651.20 and 4,856.60

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Solution

The fourth proportional to 11,109.80, 16,651.20 and 4,856.60 is: 7,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.80 : 16,651.20 = 4,856.60 : x
  2. Step 2: Convert to fraction form
    11,109.80/16,651.20 = 4,856.60/x
  3. Step 3: Cross multiply
    11,109.80x = 16,651.20 × 4,856.60
  4. Step 4: Simplify right side
    11,109.80x = 80,868,217.92
  5. Step 5: Solve for x
    x = 80,868,217.92/11,109.80
  6. Step 6: Final answer
    x = 7,279.00

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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.