Home / 12,207.11-18,311.40-5,972.40

Finding the Fourth Proportional to 12,207.11, 18,311.40 and 5,972.40

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Solution

The fourth proportional to 12,207.11, 18,311.40 and 5,972.40 is: 8,958.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.11 : 18,311.40 = 5,972.40 : x
  2. Step 2: Convert to fraction form
    12,207.11/18,311.40 = 5,972.40/x
  3. Step 3: Cross multiply
    12,207.11x = 18,311.40 × 5,972.40
  4. Step 4: Simplify right side
    12,207.11x = 109,363,005.36
  5. Step 5: Solve for x
    x = 109,363,005.36/12,207.11
  6. Step 6: Final answer
    x = 8,958.96

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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.