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Finding the Fourth Proportional to 16,939.04, 23,375.44 and 9,866.72

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Solution

The fourth proportional to 16,939.04, 23,375.44 and 9,866.72 is: 13,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.04 : 23,375.44 = 9,866.72 : x
  2. Step 2: Convert to fraction form
    16,939.04/23,375.44 = 9,866.72/x
  3. Step 3: Cross multiply
    16,939.04x = 23,375.44 × 9,866.72
  4. Step 4: Simplify right side
    16,939.04x = 230,638,921.36
  5. Step 5: Solve for x
    x = 230,638,921.36/16,939.04
  6. Step 6: Final answer
    x = 13,615.82

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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.