Home / 12,880.28-17,757.34-11,011.94

Finding the Fourth Proportional to 12,880.28, 17,757.34 and 11,011.94

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Solution

The fourth proportional to 12,880.28, 17,757.34 and 11,011.94 is: 15,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.28 : 17,757.34 = 11,011.94 : x
  2. Step 2: Convert to fraction form
    12,880.28/17,757.34 = 11,011.94/x
  3. Step 3: Cross multiply
    12,880.28x = 17,757.34 × 11,011.94
  4. Step 4: Simplify right side
    12,880.28x = 195,542,762.64
  5. Step 5: Solve for x
    x = 195,542,762.64/12,880.28
  6. Step 6: Final answer
    x = 15,181.56

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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.