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Finding the Fourth Proportional to 17,347.50, 23,939.50 and 9,389.72

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Solution

The fourth proportional to 17,347.50, 23,939.50 and 9,389.72 is: 12,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,347.50 : 23,939.50 = 9,389.72 : x
  2. Step 2: Convert to fraction form
    17,347.50/23,939.50 = 9,389.72/x
  3. Step 3: Cross multiply
    17,347.50x = 23,939.50 × 9,389.72
  4. Step 4: Simplify right side
    17,347.50x = 224,785,201.94
  5. Step 5: Solve for x
    x = 224,785,201.94/17,347.50
  6. Step 6: Final answer
    x = 12,957.79

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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.