Home / 12,354.87-17,049.73-6,689.62

Finding the Fourth Proportional to 12,354.87, 17,049.73 and 6,689.62

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Solution

The fourth proportional to 12,354.87, 17,049.73 and 6,689.62 is: 9,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.87 : 17,049.73 = 6,689.62 : x
  2. Step 2: Convert to fraction form
    12,354.87/17,049.73 = 6,689.62/x
  3. Step 3: Cross multiply
    12,354.87x = 17,049.73 × 6,689.62
  4. Step 4: Simplify right side
    12,354.87x = 114,056,214.80
  5. Step 5: Solve for x
    x = 114,056,214.80/12,354.87
  6. Step 6: Final answer
    x = 9,231.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.