Home / 11,359.80-17,039.70-5,811.30

Finding the Fourth Proportional to 11,359.80, 17,039.70 and 5,811.30

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Solution

The fourth proportional to 11,359.80, 17,039.70 and 5,811.30 is: 8,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.80 : 17,039.70 = 5,811.30 : x
  2. Step 2: Convert to fraction form
    11,359.80/17,039.70 = 5,811.30/x
  3. Step 3: Cross multiply
    11,359.80x = 17,039.70 × 5,811.30
  4. Step 4: Simplify right side
    11,359.80x = 99,022,808.61
  5. Step 5: Solve for x
    x = 99,022,808.61/11,359.80
  6. Step 6: Final answer
    x = 8,716.95

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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.