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Finding the Fourth Proportional to 15,469.94, 21,348.54 and 8,396.37

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Solution

The fourth proportional to 15,469.94, 21,348.54 and 8,396.37 is: 11,587.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.94 : 21,348.54 = 8,396.37 : x
  2. Step 2: Convert to fraction form
    15,469.94/21,348.54 = 8,396.37/x
  3. Step 3: Cross multiply
    15,469.94x = 21,348.54 × 8,396.37
  4. Step 4: Simplify right side
    15,469.94x = 179,250,192.23
  5. Step 5: Solve for x
    x = 179,250,192.23/15,469.94
  6. Step 6: Final answer
    x = 11,587.00

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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.