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Finding the Fourth Proportional to 16,597, 22,903.86 and 9,145

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Solution

The fourth proportional to 16,597, 22,903.86 and 9,145 is: 12,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,597 : 22,903.86 = 9,145 : x
  2. Step 2: Convert to fraction form
    16,597/22,903.86 = 9,145/x
  3. Step 3: Cross multiply
    16,597x = 22,903.86 × 9,145
  4. Step 4: Simplify right side
    16,597x = 209,455,799.70
  5. Step 5: Solve for x
    x = 209,455,799.70/16,597
  6. Step 6: Final answer
    x = 12,620.10

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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.