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Finding the Fourth Proportional to 17,783.48, 26,619.30 and 12,204.20

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Solution

The fourth proportional to 17,783.48, 26,619.30 and 12,204.20 is: 18,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,783.48 : 26,619.30 = 12,204.20 : x
  2. Step 2: Convert to fraction form
    17,783.48/26,619.30 = 12,204.20/x
  3. Step 3: Cross multiply
    17,783.48x = 26,619.30 × 12,204.20
  4. Step 4: Simplify right side
    17,783.48x = 324,867,327.61
  5. Step 5: Solve for x
    x = 324,867,327.61/17,783.48
  6. Step 6: Final answer
    x = 18,267.93

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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.