Home / 15,741.69-21,723.54-8,668.11

Finding the Fourth Proportional to 15,741.69, 21,723.54 and 8,668.11

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Solution

The fourth proportional to 15,741.69, 21,723.54 and 8,668.11 is: 11,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.69 : 21,723.54 = 8,668.11 : x
  2. Step 2: Convert to fraction form
    15,741.69/21,723.54 = 8,668.11/x
  3. Step 3: Cross multiply
    15,741.69x = 21,723.54 × 8,668.11
  4. Step 4: Simplify right side
    15,741.69x = 188,302,034.31
  5. Step 5: Solve for x
    x = 188,302,034.31/15,741.69
  6. Step 6: Final answer
    x = 11,962.00

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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.