Home / 17,387.40-23,987.16-11,725.80

Finding the Fourth Proportional to 17,387.40, 23,987.16 and 11,725.80

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Solution

The fourth proportional to 17,387.40, 23,987.16 and 11,725.80 is: 16,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,387.40 : 23,987.16 = 11,725.80 : x
  2. Step 2: Convert to fraction form
    17,387.40/23,987.16 = 11,725.80/x
  3. Step 3: Cross multiply
    17,387.40x = 23,987.16 × 11,725.80
  4. Step 4: Simplify right side
    17,387.40x = 281,268,640.73
  5. Step 5: Solve for x
    x = 281,268,640.73/17,387.40
  6. Step 6: Final answer
    x = 16,176.58

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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.