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Finding the Fourth Proportional to 12,241.38, 18,347.98 and 5,653.72

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Solution

The fourth proportional to 12,241.38, 18,347.98 and 5,653.72 is: 8,474.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241.38 : 18,347.98 = 5,653.72 : x
  2. Step 2: Convert to fraction form
    12,241.38/18,347.98 = 5,653.72/x
  3. Step 3: Cross multiply
    12,241.38x = 18,347.98 × 5,653.72
  4. Step 4: Simplify right side
    12,241.38x = 103,734,341.49
  5. Step 5: Solve for x
    x = 103,734,341.49/12,241.38
  6. Step 6: Final answer
    x = 8,474.07

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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.