Home / 12,817.60-19,226.40-8,662.30

Finding the Fourth Proportional to 12,817.60, 19,226.40 and 8,662.30

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Solution

The fourth proportional to 12,817.60, 19,226.40 and 8,662.30 is: 12,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.60 : 19,226.40 = 8,662.30 : x
  2. Step 2: Convert to fraction form
    12,817.60/19,226.40 = 8,662.30/x
  3. Step 3: Cross multiply
    12,817.60x = 19,226.40 × 8,662.30
  4. Step 4: Simplify right side
    12,817.60x = 166,544,844.72
  5. Step 5: Solve for x
    x = 166,544,844.72/12,817.60
  6. Step 6: Final answer
    x = 12,993.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.