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Finding the Fourth Proportional to 8,549.68, 12,825.06 and 3,618.67

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Solution

The fourth proportional to 8,549.68, 12,825.06 and 3,618.67 is: 5,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.68 : 12,825.06 = 3,618.67 : x
  2. Step 2: Convert to fraction form
    8,549.68/12,825.06 = 3,618.67/x
  3. Step 3: Cross multiply
    8,549.68x = 12,825.06 × 3,618.67
  4. Step 4: Simplify right side
    8,549.68x = 46,409,659.87
  5. Step 5: Solve for x
    x = 46,409,659.87/8,549.68
  6. Step 6: Final answer
    x = 5,428.23

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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.