Home / 15,066.80-20,778.62-10,284.56

Finding the Fourth Proportional to 15,066.80, 20,778.62 and 10,284.56

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Solution

The fourth proportional to 15,066.80, 20,778.62 and 10,284.56 is: 14,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.80 : 20,778.62 = 10,284.56 : x
  2. Step 2: Convert to fraction form
    15,066.80/20,778.62 = 10,284.56/x
  3. Step 3: Cross multiply
    15,066.80x = 20,778.62 × 10,284.56
  4. Step 4: Simplify right side
    15,066.80x = 213,698,964.11
  5. Step 5: Solve for x
    x = 213,698,964.11/15,066.80
  6. Step 6: Final answer
    x = 14,183.43

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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.