Home / 14,811.53-20,439.60-8,097.20

Finding the Fourth Proportional to 14,811.53, 20,439.60 and 8,097.20

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Solution

The fourth proportional to 14,811.53, 20,439.60 and 8,097.20 is: 11,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,811.53 : 20,439.60 = 8,097.20 : x
  2. Step 2: Convert to fraction form
    14,811.53/20,439.60 = 8,097.20/x
  3. Step 3: Cross multiply
    14,811.53x = 20,439.60 × 8,097.20
  4. Step 4: Simplify right side
    14,811.53x = 165,503,529.12
  5. Step 5: Solve for x
    x = 165,503,529.12/14,811.53
  6. Step 6: Final answer
    x = 11,173.97

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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.