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Finding the Fourth Proportional to 8,812.53, 13,218.12 and 3,263.28

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Solution

The fourth proportional to 8,812.53, 13,218.12 and 3,263.28 is: 4,894.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.53 : 13,218.12 = 3,263.28 : x
  2. Step 2: Convert to fraction form
    8,812.53/13,218.12 = 3,263.28/x
  3. Step 3: Cross multiply
    8,812.53x = 13,218.12 × 3,263.28
  4. Step 4: Simplify right side
    8,812.53x = 43,134,426.63
  5. Step 5: Solve for x
    x = 43,134,426.63/8,812.53
  6. Step 6: Final answer
    x = 4,894.67

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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.