Home / 12,165.62-18,248.81-3,845.70

Finding the Fourth Proportional to 12,165.62, 18,248.81 and 3,845.70

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Solution

The fourth proportional to 12,165.62, 18,248.81 and 3,845.70 is: 5,768.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.62 : 18,248.81 = 3,845.70 : x
  2. Step 2: Convert to fraction form
    12,165.62/18,248.81 = 3,845.70/x
  3. Step 3: Cross multiply
    12,165.62x = 18,248.81 × 3,845.70
  4. Step 4: Simplify right side
    12,165.62x = 70,179,429.39
  5. Step 5: Solve for x
    x = 70,179,429.39/12,165.62
  6. Step 6: Final answer
    x = 5,768.67

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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.