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Finding the Fourth Proportional to 9,040.41, 13,492.84 and 8,449.92

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Solution

The fourth proportional to 9,040.41, 13,492.84 and 8,449.92 is: 12,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,040.41 : 13,492.84 = 8,449.92 : x
  2. Step 2: Convert to fraction form
    9,040.41/13,492.84 = 8,449.92/x
  3. Step 3: Cross multiply
    9,040.41x = 13,492.84 × 8,449.92
  4. Step 4: Simplify right side
    9,040.41x = 114,013,473.43
  5. Step 5: Solve for x
    x = 114,013,473.43/9,040.41
  6. Step 6: Final answer
    x = 12,611.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.