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Finding the Fourth Proportional to 8,806.68, 13,210.74 and 3,612.57

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Solution

The fourth proportional to 8,806.68, 13,210.74 and 3,612.57 is: 5,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.68 : 13,210.74 = 3,612.57 : x
  2. Step 2: Convert to fraction form
    8,806.68/13,210.74 = 3,612.57/x
  3. Step 3: Cross multiply
    8,806.68x = 13,210.74 × 3,612.57
  4. Step 4: Simplify right side
    8,806.68x = 47,724,723.00
  5. Step 5: Solve for x
    x = 47,724,723.00/8,806.68
  6. Step 6: Final answer
    x = 5,419.15

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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.