Home / 14,609.60-20,161.20-8,323.04

Finding the Fourth Proportional to 14,609.60, 20,161.20 and 8,323.04

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Solution

The fourth proportional to 14,609.60, 20,161.20 and 8,323.04 is: 11,485.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.60 : 20,161.20 = 8,323.04 : x
  2. Step 2: Convert to fraction form
    14,609.60/20,161.20 = 8,323.04/x
  3. Step 3: Cross multiply
    14,609.60x = 20,161.20 × 8,323.04
  4. Step 4: Simplify right side
    14,609.60x = 167,802,474.05
  5. Step 5: Solve for x
    x = 167,802,474.05/14,609.60
  6. Step 6: Final answer
    x = 11,485.77

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Half scale
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Double scale
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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.