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Finding the Fourth Proportional to 16,818.70, 23,210.23 and 9,265.29

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Solution

The fourth proportional to 16,818.70, 23,210.23 and 9,265.29 is: 12,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,818.70 : 23,210.23 = 9,265.29 : x
  2. Step 2: Convert to fraction form
    16,818.70/23,210.23 = 9,265.29/x
  3. Step 3: Cross multiply
    16,818.70x = 23,210.23 × 9,265.29
  4. Step 4: Simplify right side
    16,818.70x = 215,049,511.92
  5. Step 5: Solve for x
    x = 215,049,511.92/16,818.70
  6. Step 6: Final answer
    x = 12,786.33

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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.