Home / 11,505.30-17,257.56-3,607.80

Finding the Fourth Proportional to 11,505.30, 17,257.56 and 3,607.80

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Solution

The fourth proportional to 11,505.30, 17,257.56 and 3,607.80 is: 5,411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.30 : 17,257.56 = 3,607.80 : x
  2. Step 2: Convert to fraction form
    11,505.30/17,257.56 = 3,607.80/x
  3. Step 3: Cross multiply
    11,505.30x = 17,257.56 × 3,607.80
  4. Step 4: Simplify right side
    11,505.30x = 62,261,824.97
  5. Step 5: Solve for x
    x = 62,261,824.97/11,505.30
  6. Step 6: Final answer
    x = 5,411.58

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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.