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Finding the Fourth Proportional to 14,040.64, 19,375.96 and 7,752.88

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Solution

The fourth proportional to 14,040.64, 19,375.96 and 7,752.88 is: 10,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.64 : 19,375.96 = 7,752.88 : x
  2. Step 2: Convert to fraction form
    14,040.64/19,375.96 = 7,752.88/x
  3. Step 3: Cross multiply
    14,040.64x = 19,375.96 × 7,752.88
  4. Step 4: Simplify right side
    14,040.64x = 150,219,357.12
  5. Step 5: Solve for x
    x = 150,219,357.12/14,040.64
  6. Step 6: Final answer
    x = 10,698.90

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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.