Home / 11,131.80-16,659.90-6,752.40

Finding the Fourth Proportional to 11,131.80, 16,659.90 and 6,752.40

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Solution

The fourth proportional to 11,131.80, 16,659.90 and 6,752.40 is: 10,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.80 : 16,659.90 = 6,752.40 : x
  2. Step 2: Convert to fraction form
    11,131.80/16,659.90 = 6,752.40/x
  3. Step 3: Cross multiply
    11,131.80x = 16,659.90 × 6,752.40
  4. Step 4: Simplify right side
    11,131.80x = 112,494,308.76
  5. Step 5: Solve for x
    x = 112,494,308.76/11,131.80
  6. Step 6: Final answer
    x = 10,105.67

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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.