Home / 11,190.99-16,789.50-9,966.81

Finding the Fourth Proportional to 11,190.99, 16,789.50 and 9,966.81

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Solution

The fourth proportional to 11,190.99, 16,789.50 and 9,966.81 is: 14,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.99 : 16,789.50 = 9,966.81 : x
  2. Step 2: Convert to fraction form
    11,190.99/16,789.50 = 9,966.81/x
  3. Step 3: Cross multiply
    11,190.99x = 16,789.50 × 9,966.81
  4. Step 4: Simplify right side
    11,190.99x = 167,337,756.50
  5. Step 5: Solve for x
    x = 167,337,756.50/11,190.99
  6. Step 6: Final answer
    x = 14,952.90

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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.