Home / 15,372.09-21,212.42-9,083.25

Finding the Fourth Proportional to 15,372.09, 21,212.42 and 9,083.25

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Solution

The fourth proportional to 15,372.09, 21,212.42 and 9,083.25 is: 12,534.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.09 : 21,212.42 = 9,083.25 : x
  2. Step 2: Convert to fraction form
    15,372.09/21,212.42 = 9,083.25/x
  3. Step 3: Cross multiply
    15,372.09x = 21,212.42 × 9,083.25
  4. Step 4: Simplify right side
    15,372.09x = 192,677,668.55
  5. Step 5: Solve for x
    x = 192,677,668.55/15,372.09
  6. Step 6: Final answer
    x = 12,534.25

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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.