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Finding the Fourth Proportional to 14,497.92, 20,014.56 and 8,912.16

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Solution

The fourth proportional to 14,497.92, 20,014.56 and 8,912.16 is: 12,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,497.92 : 20,014.56 = 8,912.16 : x
  2. Step 2: Convert to fraction form
    14,497.92/20,014.56 = 8,912.16/x
  3. Step 3: Cross multiply
    14,497.92x = 20,014.56 × 8,912.16
  4. Step 4: Simplify right side
    14,497.92x = 178,372,961.05
  5. Step 5: Solve for x
    x = 178,372,961.05/14,497.92
  6. Step 6: Final answer
    x = 12,303.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.