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Finding the Fourth Proportional to 10,003.52, 15,007.11 and 3,430.37

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Solution

The fourth proportional to 10,003.52, 15,007.11 and 3,430.37 is: 5,146.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.52 : 15,007.11 = 3,430.37 : x
  2. Step 2: Convert to fraction form
    10,003.52/15,007.11 = 3,430.37/x
  3. Step 3: Cross multiply
    10,003.52x = 15,007.11 × 3,430.37
  4. Step 4: Simplify right side
    10,003.52x = 51,479,977.45
  5. Step 5: Solve for x
    x = 51,479,977.45/10,003.52
  6. Step 6: Final answer
    x = 5,146.19

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Why These Related Problems?

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