Home / 12,171.66-18,250.50-4,767.45

Finding the Fourth Proportional to 12,171.66, 18,250.50 and 4,767.45

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Solution

The fourth proportional to 12,171.66, 18,250.50 and 4,767.45 is: 7,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.66 : 18,250.50 = 4,767.45 : x
  2. Step 2: Convert to fraction form
    12,171.66/18,250.50 = 4,767.45/x
  3. Step 3: Cross multiply
    12,171.66x = 18,250.50 × 4,767.45
  4. Step 4: Simplify right side
    12,171.66x = 87,008,346.23
  5. Step 5: Solve for x
    x = 87,008,346.23/12,171.66
  6. Step 6: Final answer
    x = 7,148.44

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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.