Home / 15,089.28-20,850.24-11,740.80

Finding the Fourth Proportional to 15,089.28, 20,850.24 and 11,740.80

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Solution

The fourth proportional to 15,089.28, 20,850.24 and 11,740.80 is: 16,223.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,089.28 : 20,850.24 = 11,740.80 : x
  2. Step 2: Convert to fraction form
    15,089.28/20,850.24 = 11,740.80/x
  3. Step 3: Cross multiply
    15,089.28x = 20,850.24 × 11,740.80
  4. Step 4: Simplify right side
    15,089.28x = 244,798,497.79
  5. Step 5: Solve for x
    x = 244,798,497.79/15,089.28
  6. Step 6: Final answer
    x = 16,223.34

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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.