Home / 12,354.25-17,048.87-6,689.03

Finding the Fourth Proportional to 12,354.25, 17,048.87 and 6,689.03

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Solution

The fourth proportional to 12,354.25, 17,048.87 and 6,689.03 is: 9,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.25 : 17,048.87 = 6,689.03 : x
  2. Step 2: Convert to fraction form
    12,354.25/17,048.87 = 6,689.03/x
  3. Step 3: Cross multiply
    12,354.25x = 17,048.87 × 6,689.03
  4. Step 4: Simplify right side
    12,354.25x = 114,040,369.45
  5. Step 5: Solve for x
    x = 114,040,369.45/12,354.25
  6. Step 6: Final answer
    x = 9,230.87

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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.