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Finding the Fourth Proportional to 17,391.13, 23,999.76 and 9,939.13

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Solution

The fourth proportional to 17,391.13, 23,999.76 and 9,939.13 is: 13,716.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,391.13 : 23,999.76 = 9,939.13 : x
  2. Step 2: Convert to fraction form
    17,391.13/23,999.76 = 9,939.13/x
  3. Step 3: Cross multiply
    17,391.13x = 23,999.76 × 9,939.13
  4. Step 4: Simplify right side
    17,391.13x = 238,536,734.61
  5. Step 5: Solve for x
    x = 238,536,734.61/17,391.13
  6. Step 6: Final answer
    x = 13,716.00

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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.