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Finding the Fourth Proportional to 16,899.21, 23,322.11 and 9,345.39

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Solution

The fourth proportional to 16,899.21, 23,322.11 and 9,345.39 is: 12,897.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.21 : 23,322.11 = 9,345.39 : x
  2. Step 2: Convert to fraction form
    16,899.21/23,322.11 = 9,345.39/x
  3. Step 3: Cross multiply
    16,899.21x = 23,322.11 × 9,345.39
  4. Step 4: Simplify right side
    16,899.21x = 217,954,213.57
  5. Step 5: Solve for x
    x = 217,954,213.57/16,899.21
  6. Step 6: Final answer
    x = 12,897.30

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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.