Home / 16,690.90-23,033.62-9,137.38

Finding the Fourth Proportional to 16,690.90, 23,033.62 and 9,137.38

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Solution

The fourth proportional to 16,690.90, 23,033.62 and 9,137.38 is: 12,609.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,690.90 : 23,033.62 = 9,137.38 : x
  2. Step 2: Convert to fraction form
    16,690.90/23,033.62 = 9,137.38/x
  3. Step 3: Cross multiply
    16,690.90x = 23,033.62 × 9,137.38
  4. Step 4: Simplify right side
    16,690.90x = 210,466,938.72
  5. Step 5: Solve for x
    x = 210,466,938.72/16,690.90
  6. Step 6: Final answer
    x = 12,609.68

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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.