Home / 15,122.44-20,864.46-11,968.84

Finding the Fourth Proportional to 15,122.44, 20,864.46 and 11,968.84

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Solution

The fourth proportional to 15,122.44, 20,864.46 and 11,968.84 is: 16,513.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.44 : 20,864.46 = 11,968.84 : x
  2. Step 2: Convert to fraction form
    15,122.44/20,864.46 = 11,968.84/x
  3. Step 3: Cross multiply
    15,122.44x = 20,864.46 × 11,968.84
  4. Step 4: Simplify right side
    15,122.44x = 249,723,383.43
  5. Step 5: Solve for x
    x = 249,723,383.43/15,122.44
  6. Step 6: Final answer
    x = 16,513.43

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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.