Home / 12,770.04-17,622.54-7,180.92

Finding the Fourth Proportional to 12,770.04, 17,622.54 and 7,180.92

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Solution

The fourth proportional to 12,770.04, 17,622.54 and 7,180.92 is: 9,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.04 : 17,622.54 = 7,180.92 : x
  2. Step 2: Convert to fraction form
    12,770.04/17,622.54 = 7,180.92/x
  3. Step 3: Cross multiply
    12,770.04x = 17,622.54 × 7,180.92
  4. Step 4: Simplify right side
    12,770.04x = 126,546,049.94
  5. Step 5: Solve for x
    x = 126,546,049.94/12,770.04
  6. Step 6: Final answer
    x = 9,909.60

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Half scale
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Double scale
Find fourth proportional to 12,771.04, 17,623.92 and 7,181.92
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.