Home / 11,384.39-17,084.27-3,988.91

Finding the Fourth Proportional to 11,384.39, 17,084.27 and 3,988.91

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Solution

The fourth proportional to 11,384.39, 17,084.27 and 3,988.91 is: 5,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,384.39 : 17,084.27 = 3,988.91 : x
  2. Step 2: Convert to fraction form
    11,384.39/17,084.27 = 3,988.91/x
  3. Step 3: Cross multiply
    11,384.39x = 17,084.27 × 3,988.91
  4. Step 4: Simplify right side
    11,384.39x = 68,147,668.13
  5. Step 5: Solve for x
    x = 68,147,668.13/11,384.39
  6. Step 6: Final answer
    x = 5,986.06

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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.