Home / 15,747.03-21,729.91-8,673.46

Finding the Fourth Proportional to 15,747.03, 21,729.91 and 8,673.46

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Solution

The fourth proportional to 15,747.03, 21,729.91 and 8,673.46 is: 11,968.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.03 : 21,729.91 = 8,673.46 : x
  2. Step 2: Convert to fraction form
    15,747.03/21,729.91 = 8,673.46/x
  3. Step 3: Cross multiply
    15,747.03x = 21,729.91 × 8,673.46
  4. Step 4: Simplify right side
    15,747.03x = 188,473,505.19
  5. Step 5: Solve for x
    x = 188,473,505.19/15,747.03
  6. Step 6: Final answer
    x = 11,968.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.