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Finding the Fourth Proportional to 14,600.11, 21,900.16 and 8,355.76

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Solution

The fourth proportional to 14,600.11, 21,900.16 and 8,355.76 is: 12,533.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,600.11 : 21,900.16 = 8,355.76 : x
  2. Step 2: Convert to fraction form
    14,600.11/21,900.16 = 8,355.76/x
  3. Step 3: Cross multiply
    14,600.11x = 21,900.16 × 8,355.76
  4. Step 4: Simplify right side
    14,600.11x = 182,992,439.14
  5. Step 5: Solve for x
    x = 182,992,439.14/14,600.11
  6. Step 6: Final answer
    x = 12,533.64

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Similar ratio
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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.