Home / 15,741.46-21,723.42-8,668.41

Finding the Fourth Proportional to 15,741.46, 21,723.42 and 8,668.41

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Solution

The fourth proportional to 15,741.46, 21,723.42 and 8,668.41 is: 11,962.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.46 : 21,723.42 = 8,668.41 : x
  2. Step 2: Convert to fraction form
    15,741.46/21,723.42 = 8,668.41/x
  3. Step 3: Cross multiply
    15,741.46x = 21,723.42 × 8,668.41
  4. Step 4: Simplify right side
    15,741.46x = 188,307,511.16
  5. Step 5: Solve for x
    x = 188,307,511.16/15,741.46
  6. Step 6: Final answer
    x = 11,962.52

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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.