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Finding the Fourth Proportional to 12,397.84, 18,597.98 and 4,074.48

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Solution

The fourth proportional to 12,397.84, 18,597.98 and 4,074.48 is: 6,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.84 : 18,597.98 = 4,074.48 : x
  2. Step 2: Convert to fraction form
    12,397.84/18,597.98 = 4,074.48/x
  3. Step 3: Cross multiply
    12,397.84x = 18,597.98 × 4,074.48
  4. Step 4: Simplify right side
    12,397.84x = 75,777,107.74
  5. Step 5: Solve for x
    x = 75,777,107.74/12,397.84
  6. Step 6: Final answer
    x = 6,112.12

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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.