Home / 15,086.40-20,839.55-11,593.28

Finding the Fourth Proportional to 15,086.40, 20,839.55 and 11,593.28

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Solution

The fourth proportional to 15,086.40, 20,839.55 and 11,593.28 is: 16,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,086.40 : 20,839.55 = 11,593.28 : x
  2. Step 2: Convert to fraction form
    15,086.40/20,839.55 = 11,593.28/x
  3. Step 3: Cross multiply
    15,086.40x = 20,839.55 × 11,593.28
  4. Step 4: Simplify right side
    15,086.40x = 241,598,576.06
  5. Step 5: Solve for x
    x = 241,598,576.06/15,086.40
  6. Step 6: Final answer
    x = 16,014.33

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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.