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Finding the Fourth Proportional to 17,347.69, 23,939.79 and 9,389.90

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Solution

The fourth proportional to 17,347.69, 23,939.79 and 9,389.90 is: 12,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,347.69 : 23,939.79 = 9,389.90 : x
  2. Step 2: Convert to fraction form
    17,347.69/23,939.79 = 9,389.90/x
  3. Step 3: Cross multiply
    17,347.69x = 23,939.79 × 9,389.90
  4. Step 4: Simplify right side
    17,347.69x = 224,792,234.12
  5. Step 5: Solve for x
    x = 224,792,234.12/17,347.69
  6. Step 6: Final answer
    x = 12,958.05

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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.