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Finding the Fourth Proportional to 12,203.54, 18,300.98 and 5,274.26

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Solution

The fourth proportional to 12,203.54, 18,300.98 and 5,274.26 is: 7,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.54 : 18,300.98 = 5,274.26 : x
  2. Step 2: Convert to fraction form
    12,203.54/18,300.98 = 5,274.26/x
  3. Step 3: Cross multiply
    12,203.54x = 18,300.98 × 5,274.26
  4. Step 4: Simplify right side
    12,203.54x = 96,524,126.77
  5. Step 5: Solve for x
    x = 96,524,126.77/12,203.54
  6. Step 6: Final answer
    x = 7,909.52

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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.