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Finding the Fourth Proportional to 9,129, 13,693.53 and 2,203.50

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Solution

The fourth proportional to 9,129, 13,693.53 and 2,203.50 is: 3,305.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129 : 13,693.53 = 2,203.50 : x
  2. Step 2: Convert to fraction form
    9,129/13,693.53 = 2,203.50/x
  3. Step 3: Cross multiply
    9,129x = 13,693.53 × 2,203.50
  4. Step 4: Simplify right side
    9,129x = 30,173,693.36
  5. Step 5: Solve for x
    x = 30,173,693.36/9,129
  6. Step 6: Final answer
    x = 3,305.26

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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.