Home / 14,651.31-20,220.26-8,364.63

Finding the Fourth Proportional to 14,651.31, 20,220.26 and 8,364.63

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Solution

The fourth proportional to 14,651.31, 20,220.26 and 8,364.63 is: 11,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.31 : 20,220.26 = 8,364.63 : x
  2. Step 2: Convert to fraction form
    14,651.31/20,220.26 = 8,364.63/x
  3. Step 3: Cross multiply
    14,651.31x = 20,220.26 × 8,364.63
  4. Step 4: Simplify right side
    14,651.31x = 169,134,951.58
  5. Step 5: Solve for x
    x = 169,134,951.58/14,651.31
  6. Step 6: Final answer
    x = 11,544.02

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Half scale
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Double scale
Find fourth proportional to 14,652.31, 20,221.64 and 8,365.63
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.