Home / 14,770.19-20,382.24-8,055.70

Finding the Fourth Proportional to 14,770.19, 20,382.24 and 8,055.70

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Solution

The fourth proportional to 14,770.19, 20,382.24 and 8,055.70 is: 11,116.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.19 : 20,382.24 = 8,055.70 : x
  2. Step 2: Convert to fraction form
    14,770.19/20,382.24 = 8,055.70/x
  3. Step 3: Cross multiply
    14,770.19x = 20,382.24 × 8,055.70
  4. Step 4: Simplify right side
    14,770.19x = 164,193,108.86
  5. Step 5: Solve for x
    x = 164,193,108.86/14,770.19
  6. Step 6: Final answer
    x = 11,116.52

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Half scale
Find fourth proportional to 29,540.38, 40,764.48 and 16,111.39
Double scale
Find fourth proportional to 14,771.19, 20,383.62 and 8,056.70
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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.