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Finding the Fourth Proportional to 8,993.94, 13,489.01 and 2,420.18

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Solution

The fourth proportional to 8,993.94, 13,489.01 and 2,420.18 is: 3,629.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.94 : 13,489.01 = 2,420.18 : x
  2. Step 2: Convert to fraction form
    8,993.94/13,489.01 = 2,420.18/x
  3. Step 3: Cross multiply
    8,993.94x = 13,489.01 × 2,420.18
  4. Step 4: Simplify right side
    8,993.94x = 32,645,812.34
  5. Step 5: Solve for x
    x = 32,645,812.34/8,993.94
  6. Step 6: Final answer
    x = 3,629.76

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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.