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Finding the Fourth Proportional to 16,695, 23,039.46 and 9,620.28

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Solution

The fourth proportional to 16,695, 23,039.46 and 9,620.28 is: 13,276.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,695 : 23,039.46 = 9,620.28 : x
  2. Step 2: Convert to fraction form
    16,695/23,039.46 = 9,620.28/x
  3. Step 3: Cross multiply
    16,695x = 23,039.46 × 9,620.28
  4. Step 4: Simplify right side
    16,695x = 221,646,056.25
  5. Step 5: Solve for x
    x = 221,646,056.25/16,695
  6. Step 6: Final answer
    x = 13,276.19

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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.