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Finding the Fourth Proportional to 16,975.26, 23,423.02 and 9,420.39

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Solution

The fourth proportional to 16,975.26, 23,423.02 and 9,420.39 is: 12,998.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,975.26 : 23,423.02 = 9,420.39 : x
  2. Step 2: Convert to fraction form
    16,975.26/23,423.02 = 9,420.39/x
  3. Step 3: Cross multiply
    16,975.26x = 23,423.02 × 9,420.39
  4. Step 4: Simplify right side
    16,975.26x = 220,653,983.38
  5. Step 5: Solve for x
    x = 220,653,983.38/16,975.26
  6. Step 6: Final answer
    x = 12,998.56

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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.