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Finding the Fourth Proportional to 8,993.90, 13,485.01 and 4,313.80

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Solution

The fourth proportional to 8,993.90, 13,485.01 and 4,313.80 is: 6,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.90 : 13,485.01 = 4,313.80 : x
  2. Step 2: Convert to fraction form
    8,993.90/13,485.01 = 4,313.80/x
  3. Step 3: Cross multiply
    8,993.90x = 13,485.01 × 4,313.80
  4. Step 4: Simplify right side
    8,993.90x = 58,171,636.14
  5. Step 5: Solve for x
    x = 58,171,636.14/8,993.90
  6. Step 6: Final answer
    x = 6,467.90

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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.