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Finding the Fourth Proportional to 8,900.86, 13,334.12 and 4,993.42

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Solution

The fourth proportional to 8,900.86, 13,334.12 and 4,993.42 is: 7,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.86 : 13,334.12 = 4,993.42 : x
  2. Step 2: Convert to fraction form
    8,900.86/13,334.12 = 4,993.42/x
  3. Step 3: Cross multiply
    8,900.86x = 13,334.12 × 4,993.42
  4. Step 4: Simplify right side
    8,900.86x = 66,582,861.49
  5. Step 5: Solve for x
    x = 66,582,861.49/8,900.86
  6. Step 6: Final answer
    x = 7,480.50

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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.