Home / 15,741.67-21,723.98-8,668.35

Finding the Fourth Proportional to 15,741.67, 21,723.98 and 8,668.35

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Solution

The fourth proportional to 15,741.67, 21,723.98 and 8,668.35 is: 11,962.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.67 : 21,723.98 = 8,668.35 : x
  2. Step 2: Convert to fraction form
    15,741.67/21,723.98 = 8,668.35/x
  3. Step 3: Cross multiply
    15,741.67x = 21,723.98 × 8,668.35
  4. Step 4: Simplify right side
    15,741.67x = 188,311,062.03
  5. Step 5: Solve for x
    x = 188,311,062.03/15,741.67
  6. Step 6: Final answer
    x = 11,962.58

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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.