Home / 15,741.75-21,723.62-8,668.16

Finding the Fourth Proportional to 15,741.75, 21,723.62 and 8,668.16

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Solution

The fourth proportional to 15,741.75, 21,723.62 and 8,668.16 is: 11,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.75 : 21,723.62 = 8,668.16 : x
  2. Step 2: Convert to fraction form
    15,741.75/21,723.62 = 8,668.16/x
  3. Step 3: Cross multiply
    15,741.75x = 21,723.62 × 8,668.16
  4. Step 4: Simplify right side
    15,741.75x = 188,303,661.98
  5. Step 5: Solve for x
    x = 188,303,661.98/15,741.75
  6. Step 6: Final answer
    x = 11,962.05

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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.