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Finding the Fourth Proportional to 9,203.55, 13,805.33 and 7,129.95

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Solution

The fourth proportional to 9,203.55, 13,805.33 and 7,129.95 is: 10,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,203.55 : 13,805.33 = 7,129.95 : x
  2. Step 2: Convert to fraction form
    9,203.55/13,805.33 = 7,129.95/x
  3. Step 3: Cross multiply
    9,203.55x = 13,805.33 × 7,129.95
  4. Step 4: Simplify right side
    9,203.55x = 98,431,276.98
  5. Step 5: Solve for x
    x = 98,431,276.98/9,203.55
  6. Step 6: Final answer
    x = 10,694.93

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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.