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Finding the Fourth Proportional to 8,499.96, 12,749.49 and 2,656.17

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Solution

The fourth proportional to 8,499.96, 12,749.49 and 2,656.17 is: 3,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.96 : 12,749.49 = 2,656.17 : x
  2. Step 2: Convert to fraction form
    8,499.96/12,749.49 = 2,656.17/x
  3. Step 3: Cross multiply
    8,499.96x = 12,749.49 × 2,656.17
  4. Step 4: Simplify right side
    8,499.96x = 33,864,812.85
  5. Step 5: Solve for x
    x = 33,864,812.85/8,499.96
  6. Step 6: Final answer
    x = 3,984.11

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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.