Home / 15,270.69-21,083.82-9,536.88

Finding the Fourth Proportional to 15,270.69, 21,083.82 and 9,536.88

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Solution

The fourth proportional to 15,270.69, 21,083.82 and 9,536.88 is: 13,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.69 : 21,083.82 = 9,536.88 : x
  2. Step 2: Convert to fraction form
    15,270.69/21,083.82 = 9,536.88/x
  3. Step 3: Cross multiply
    15,270.69x = 21,083.82 × 9,536.88
  4. Step 4: Simplify right side
    15,270.69x = 201,073,861.28
  5. Step 5: Solve for x
    x = 201,073,861.28/15,270.69
  6. Step 6: Final answer
    x = 13,167.31

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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.