Home / 13,924.60-20,886.90-8,999.80

Finding the Fourth Proportional to 13,924.60, 20,886.90 and 8,999.80

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Solution

The fourth proportional to 13,924.60, 20,886.90 and 8,999.80 is: 13,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.60 : 20,886.90 = 8,999.80 : x
  2. Step 2: Convert to fraction form
    13,924.60/20,886.90 = 8,999.80/x
  3. Step 3: Cross multiply
    13,924.60x = 20,886.90 × 8,999.80
  4. Step 4: Simplify right side
    13,924.60x = 187,977,922.62
  5. Step 5: Solve for x
    x = 187,977,922.62/13,924.60
  6. Step 6: Final answer
    x = 13,499.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.