Home / 15,793.34-21,768.83-11,195.64

Finding the Fourth Proportional to 15,793.34, 21,768.83 and 11,195.64

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Solution

The fourth proportional to 15,793.34, 21,768.83 and 11,195.64 is: 15,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.34 : 21,768.83 = 11,195.64 : x
  2. Step 2: Convert to fraction form
    15,793.34/21,768.83 = 11,195.64/x
  3. Step 3: Cross multiply
    15,793.34x = 21,768.83 × 11,195.64
  4. Step 4: Simplify right side
    15,793.34x = 243,715,927.92
  5. Step 5: Solve for x
    x = 243,715,927.92/15,793.34
  6. Step 6: Final answer
    x = 15,431.57

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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.