Home / 16,690.80-23,032.32-9,135.64

Finding the Fourth Proportional to 16,690.80, 23,032.32 and 9,135.64

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Solution

The fourth proportional to 16,690.80, 23,032.32 and 9,135.64 is: 12,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,690.80 : 23,032.32 = 9,135.64 : x
  2. Step 2: Convert to fraction form
    16,690.80/23,032.32 = 9,135.64/x
  3. Step 3: Cross multiply
    16,690.80x = 23,032.32 × 9,135.64
  4. Step 4: Simplify right side
    16,690.80x = 210,414,983.88
  5. Step 5: Solve for x
    x = 210,414,983.88/16,690.80
  6. Step 6: Final answer
    x = 12,606.64

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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.