Home / 12,523.44-17,280.68-7,146.63

Finding the Fourth Proportional to 12,523.44, 17,280.68 and 7,146.63

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Solution

The fourth proportional to 12,523.44, 17,280.68 and 7,146.63 is: 9,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,523.44 : 17,280.68 = 7,146.63 : x
  2. Step 2: Convert to fraction form
    12,523.44/17,280.68 = 7,146.63/x
  3. Step 3: Cross multiply
    12,523.44x = 17,280.68 × 7,146.63
  4. Step 4: Simplify right side
    12,523.44x = 123,498,590.38
  5. Step 5: Solve for x
    x = 123,498,590.38/12,523.44
  6. Step 6: Final answer
    x = 9,861.39

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Half scale
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Double scale
Find fourth proportional to 12,524.44, 17,282.05 and 7,147.63
Similar ratio
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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.