Home / 11,790.69-17,686.23-9,439.80

Finding the Fourth Proportional to 11,790.69, 17,686.23 and 9,439.80

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Solution

The fourth proportional to 11,790.69, 17,686.23 and 9,439.80 is: 14,159.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.69 : 17,686.23 = 9,439.80 : x
  2. Step 2: Convert to fraction form
    11,790.69/17,686.23 = 9,439.80/x
  3. Step 3: Cross multiply
    11,790.69x = 17,686.23 × 9,439.80
  4. Step 4: Simplify right side
    11,790.69x = 166,954,473.95
  5. Step 5: Solve for x
    x = 166,954,473.95/11,790.69
  6. Step 6: Final answer
    x = 14,159.86

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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.