Home / 12,215.14-18,311.79-5,971.62

Finding the Fourth Proportional to 12,215.14, 18,311.79 and 5,971.62

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Solution

The fourth proportional to 12,215.14, 18,311.79 and 5,971.62 is: 8,952.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.14 : 18,311.79 = 5,971.62 : x
  2. Step 2: Convert to fraction form
    12,215.14/18,311.79 = 5,971.62/x
  3. Step 3: Cross multiply
    12,215.14x = 18,311.79 × 5,971.62
  4. Step 4: Simplify right side
    12,215.14x = 109,351,051.40
  5. Step 5: Solve for x
    x = 109,351,051.40/12,215.14
  6. Step 6: Final answer
    x = 8,952.09

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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.