Home / 12,311.44-18,451.66-6,689.03

Finding the Fourth Proportional to 12,311.44, 18,451.66 and 6,689.03

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Solution

The fourth proportional to 12,311.44, 18,451.66 and 6,689.03 is: 10,025.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.44 : 18,451.66 = 6,689.03 : x
  2. Step 2: Convert to fraction form
    12,311.44/18,451.66 = 6,689.03/x
  3. Step 3: Cross multiply
    12,311.44x = 18,451.66 × 6,689.03
  4. Step 4: Simplify right side
    12,311.44x = 123,423,598.31
  5. Step 5: Solve for x
    x = 123,423,598.31/12,311.44
  6. Step 6: Final answer
    x = 10,025.12

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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.