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Finding the Fourth Proportional to 16,986.94, 25,458.42 and 9,490.30

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Solution

The fourth proportional to 16,986.94, 25,458.42 and 9,490.30 is: 14,223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.94 : 25,458.42 = 9,490.30 : x
  2. Step 2: Convert to fraction form
    16,986.94/25,458.42 = 9,490.30/x
  3. Step 3: Cross multiply
    16,986.94x = 25,458.42 × 9,490.30
  4. Step 4: Simplify right side
    16,986.94x = 241,608,043.33
  5. Step 5: Solve for x
    x = 241,608,043.33/16,986.94
  6. Step 6: Final answer
    x = 14,223.16

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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.