Home / 17,721.09-26,580.24-7,725.60

Finding the Fourth Proportional to 17,721.09, 26,580.24 and 7,725.60

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Solution

The fourth proportional to 17,721.09, 26,580.24 and 7,725.60 is: 11,587.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.09 : 26,580.24 = 7,725.60 : x
  2. Step 2: Convert to fraction form
    17,721.09/26,580.24 = 7,725.60/x
  3. Step 3: Cross multiply
    17,721.09x = 26,580.24 × 7,725.60
  4. Step 4: Simplify right side
    17,721.09x = 205,348,302.14
  5. Step 5: Solve for x
    x = 205,348,302.14/17,721.09
  6. Step 6: Final answer
    x = 11,587.79

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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.