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Finding the Fourth Proportional to 10,400.32, 15,603 and 3,475.36

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Solution

The fourth proportional to 10,400.32, 15,603 and 3,475.36 is: 5,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.32 : 15,603 = 3,475.36 : x
  2. Step 2: Convert to fraction form
    10,400.32/15,603 = 3,475.36/x
  3. Step 3: Cross multiply
    10,400.32x = 15,603 × 3,475.36
  4. Step 4: Simplify right side
    10,400.32x = 54,226,042.08
  5. Step 5: Solve for x
    x = 54,226,042.08/10,400.32
  6. Step 6: Final answer
    x = 5,213.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.