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Finding the Fourth Proportional to 16,603, 22,912.38 and 9,151

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Solution

The fourth proportional to 16,603, 22,912.38 and 9,151 is: 12,628.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,603 : 22,912.38 = 9,151 : x
  2. Step 2: Convert to fraction form
    16,603/22,912.38 = 9,151/x
  3. Step 3: Cross multiply
    16,603x = 22,912.38 × 9,151
  4. Step 4: Simplify right side
    16,603x = 209,671,189.38
  5. Step 5: Solve for x
    x = 209,671,189.38/16,603
  6. Step 6: Final answer
    x = 12,628.51

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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.