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Finding the Fourth Proportional to 9,128.69, 13,693.03 and 2,203.19

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Solution

The fourth proportional to 9,128.69, 13,693.03 and 2,203.19 is: 3,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.69 : 13,693.03 = 2,203.19 : x
  2. Step 2: Convert to fraction form
    9,128.69/13,693.03 = 2,203.19/x
  3. Step 3: Cross multiply
    9,128.69x = 13,693.03 × 2,203.19
  4. Step 4: Simplify right side
    9,128.69x = 30,168,346.77
  5. Step 5: Solve for x
    x = 30,168,346.77/9,128.69
  6. Step 6: Final answer
    x = 3,304.78

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1.5x scale

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.