Home / 20,763.66-28,652.94-11,810.10

Finding the Fourth Proportional to 20,763.66, 28,652.94 and 11,810.10

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Solution

The fourth proportional to 20,763.66, 28,652.94 and 11,810.10 is: 16,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.66 : 28,652.94 = 11,810.10 : x
  2. Step 2: Convert to fraction form
    20,763.66/28,652.94 = 11,810.10/x
  3. Step 3: Cross multiply
    20,763.66x = 28,652.94 × 11,810.10
  4. Step 4: Simplify right side
    20,763.66x = 338,394,086.69
  5. Step 5: Solve for x
    x = 338,394,086.69/20,763.66
  6. Step 6: Final answer
    x = 16,297.42

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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.