Home / 11,580.72-17,371.06-2,815.56

Finding the Fourth Proportional to 11,580.72, 17,371.06 and 2,815.56

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Solution

The fourth proportional to 11,580.72, 17,371.06 and 2,815.56 is: 4,223.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.72 : 17,371.06 = 2,815.56 : x
  2. Step 2: Convert to fraction form
    11,580.72/17,371.06 = 2,815.56/x
  3. Step 3: Cross multiply
    11,580.72x = 17,371.06 × 2,815.56
  4. Step 4: Simplify right side
    11,580.72x = 48,909,261.69
  5. Step 5: Solve for x
    x = 48,909,261.69/11,580.72
  6. Step 6: Final answer
    x = 4,223.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.