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Finding the Fourth Proportional to 7,393.50, 10,203.12 and 4,081.50

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Solution

The fourth proportional to 7,393.50, 10,203.12 and 4,081.50 is: 5,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393.50 : 10,203.12 = 4,081.50 : x
  2. Step 2: Convert to fraction form
    7,393.50/10,203.12 = 4,081.50/x
  3. Step 3: Cross multiply
    7,393.50x = 10,203.12 × 4,081.50
  4. Step 4: Simplify right side
    7,393.50x = 41,644,034.28
  5. Step 5: Solve for x
    x = 41,644,034.28/7,393.50
  6. Step 6: Final answer
    x = 5,632.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.