Home / 12,316.60-18,477.81-3,996.62

Finding the Fourth Proportional to 12,316.60, 18,477.81 and 3,996.62

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Solution

The fourth proportional to 12,316.60, 18,477.81 and 3,996.62 is: 5,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.60 : 18,477.81 = 3,996.62 : x
  2. Step 2: Convert to fraction form
    12,316.60/18,477.81 = 3,996.62/x
  3. Step 3: Cross multiply
    12,316.60x = 18,477.81 × 3,996.62
  4. Step 4: Simplify right side
    12,316.60x = 73,848,692.61
  5. Step 5: Solve for x
    x = 73,848,692.61/12,316.60
  6. Step 6: Final answer
    x = 5,995.87

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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.